Home / 15,386.43-23,079.63-3,699.65

Finding the Fourth Proportional to 15,386.43, 23,079.63 and 3,699.65

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Solution

The fourth proportional to 15,386.43, 23,079.63 and 3,699.65 is: 5,549.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.43 : 23,079.63 = 3,699.65 : x
  2. Step 2: Convert to fraction form
    15,386.43/23,079.63 = 3,699.65/x
  3. Step 3: Cross multiply
    15,386.43x = 23,079.63 × 3,699.65
  4. Step 4: Simplify right side
    15,386.43x = 85,386,437.73
  5. Step 5: Solve for x
    x = 85,386,437.73/15,386.43
  6. Step 6: Final answer
    x = 5,549.46

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Half scale
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Double scale
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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.