Home / 19,187.36-26,479.68-10,805.12

Finding the Fourth Proportional to 19,187.36, 26,479.68 and 10,805.12

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Solution

The fourth proportional to 19,187.36, 26,479.68 and 10,805.12 is: 14,911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.36 : 26,479.68 = 10,805.12 : x
  2. Step 2: Convert to fraction form
    19,187.36/26,479.68 = 10,805.12/x
  3. Step 3: Cross multiply
    19,187.36x = 26,479.68 × 10,805.12
  4. Step 4: Simplify right side
    19,187.36x = 286,116,119.96
  5. Step 5: Solve for x
    x = 286,116,119.96/19,187.36
  6. Step 6: Final answer
    x = 14,911.70

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.