Home / 15,439.50-21,301.56-9,468.18

Finding the Fourth Proportional to 15,439.50, 21,301.56 and 9,468.18

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Solution

The fourth proportional to 15,439.50, 21,301.56 and 9,468.18 is: 13,063.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,439.50 : 21,301.56 = 9,468.18 : x
  2. Step 2: Convert to fraction form
    15,439.50/21,301.56 = 9,468.18/x
  3. Step 3: Cross multiply
    15,439.50x = 21,301.56 × 9,468.18
  4. Step 4: Simplify right side
    15,439.50x = 201,687,004.36
  5. Step 5: Solve for x
    x = 201,687,004.36/15,439.50
  6. Step 6: Final answer
    x = 13,063.05

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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.