Home / 12,924.12-19,386.18-3,690.12

Finding the Fourth Proportional to 12,924.12, 19,386.18 and 3,690.12

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Solution

The fourth proportional to 12,924.12, 19,386.18 and 3,690.12 is: 5,535.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,924.12 : 19,386.18 = 3,690.12 : x
  2. Step 2: Convert to fraction form
    12,924.12/19,386.18 = 3,690.12/x
  3. Step 3: Cross multiply
    12,924.12x = 19,386.18 × 3,690.12
  4. Step 4: Simplify right side
    12,924.12x = 71,537,330.54
  5. Step 5: Solve for x
    x = 71,537,330.54/12,924.12
  6. Step 6: Final answer
    x = 5,535.18

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Half scale
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Double scale
Find fourth proportional to 12,925.12, 19,387.68 and 3,691.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.