Home / 14,724.30-20,320.02-8,437.88

Finding the Fourth Proportional to 14,724.30, 20,320.02 and 8,437.88

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Solution

The fourth proportional to 14,724.30, 20,320.02 and 8,437.88 is: 11,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,724.30 : 20,320.02 = 8,437.88 : x
  2. Step 2: Convert to fraction form
    14,724.30/20,320.02 = 8,437.88/x
  3. Step 3: Cross multiply
    14,724.30x = 20,320.02 × 8,437.88
  4. Step 4: Simplify right side
    14,724.30x = 171,457,890.36
  5. Step 5: Solve for x
    x = 171,457,890.36/14,724.30
  6. Step 6: Final answer
    x = 11,644.55

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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.