Home / 14,972.52-20,663.19-8,685.84

Finding the Fourth Proportional to 14,972.52, 20,663.19 and 8,685.84

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Solution

The fourth proportional to 14,972.52, 20,663.19 and 8,685.84 is: 11,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,972.52 : 20,663.19 = 8,685.84 : x
  2. Step 2: Convert to fraction form
    14,972.52/20,663.19 = 8,685.84/x
  3. Step 3: Cross multiply
    14,972.52x = 20,663.19 × 8,685.84
  4. Step 4: Simplify right side
    14,972.52x = 179,477,162.23
  5. Step 5: Solve for x
    x = 179,477,162.23/14,972.52
  6. Step 6: Final answer
    x = 11,987.10

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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.