Home / 15,549.49-21,478.13-10,854.73

Finding the Fourth Proportional to 15,549.49, 21,478.13 and 10,854.73

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Solution

The fourth proportional to 15,549.49, 21,478.13 and 10,854.73 is: 14,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.49 : 21,478.13 = 10,854.73 : x
  2. Step 2: Convert to fraction form
    15,549.49/21,478.13 = 10,854.73/x
  3. Step 3: Cross multiply
    15,549.49x = 21,478.13 × 10,854.73
  4. Step 4: Simplify right side
    15,549.49x = 233,139,302.05
  5. Step 5: Solve for x
    x = 233,139,302.05/15,549.49
  6. Step 6: Final answer
    x = 14,993.37

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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.