Home / 15,487.30-21,362.91-13,597.42

Finding the Fourth Proportional to 15,487.30, 21,362.91 and 13,597.42

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Solution

The fourth proportional to 15,487.30, 21,362.91 and 13,597.42 is: 18,756.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.30 : 21,362.91 = 13,597.42 : x
  2. Step 2: Convert to fraction form
    15,487.30/21,362.91 = 13,597.42/x
  3. Step 3: Cross multiply
    15,487.30x = 21,362.91 × 13,597.42
  4. Step 4: Simplify right side
    15,487.30x = 290,480,459.69
  5. Step 5: Solve for x
    x = 290,480,459.69/15,487.30
  6. Step 6: Final answer
    x = 18,756.04

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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.