Home / 15,407.24-21,262.20-8,693.20

Finding the Fourth Proportional to 15,407.24, 21,262.20 and 8,693.20

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Solution

The fourth proportional to 15,407.24, 21,262.20 and 8,693.20 is: 11,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.24 : 21,262.20 = 8,693.20 : x
  2. Step 2: Convert to fraction form
    15,407.24/21,262.20 = 8,693.20/x
  3. Step 3: Cross multiply
    15,407.24x = 21,262.20 × 8,693.20
  4. Step 4: Simplify right side
    15,407.24x = 184,836,557.04
  5. Step 5: Solve for x
    x = 184,836,557.04/15,407.24
  6. Step 6: Final answer
    x = 11,996.73

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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.