Home / 15,547.29-21,438.33-10,502.76

Finding the Fourth Proportional to 15,547.29, 21,438.33 and 10,502.76

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Solution

The fourth proportional to 15,547.29, 21,438.33 and 10,502.76 is: 14,482.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.29 : 21,438.33 = 10,502.76 : x
  2. Step 2: Convert to fraction form
    15,547.29/21,438.33 = 10,502.76/x
  3. Step 3: Cross multiply
    15,547.29x = 21,438.33 × 10,502.76
  4. Step 4: Simplify right side
    15,547.29x = 225,161,595.41
  5. Step 5: Solve for x
    x = 225,161,595.41/15,547.29
  6. Step 6: Final answer
    x = 14,482.37

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Half scale
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Double scale
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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.