Home / 15,239.52-21,024.36-9,266.40

Finding the Fourth Proportional to 15,239.52, 21,024.36 and 9,266.40

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Solution

The fourth proportional to 15,239.52, 21,024.36 and 9,266.40 is: 12,783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.52 : 21,024.36 = 9,266.40 : x
  2. Step 2: Convert to fraction form
    15,239.52/21,024.36 = 9,266.40/x
  3. Step 3: Cross multiply
    15,239.52x = 21,024.36 × 9,266.40
  4. Step 4: Simplify right side
    15,239.52x = 194,820,129.50
  5. Step 5: Solve for x
    x = 194,820,129.50/15,239.52
  6. Step 6: Final answer
    x = 12,783.88

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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.