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Finding the Fourth Proportional to 14,439.77, 19,927.02 and 8,471.53

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Solution

The fourth proportional to 14,439.77, 19,927.02 and 8,471.53 is: 11,690.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.77 : 19,927.02 = 8,471.53 : x
  2. Step 2: Convert to fraction form
    14,439.77/19,927.02 = 8,471.53/x
  3. Step 3: Cross multiply
    14,439.77x = 19,927.02 × 8,471.53
  4. Step 4: Simplify right side
    14,439.77x = 168,812,347.74
  5. Step 5: Solve for x
    x = 168,812,347.74/14,439.77
  6. Step 6: Final answer
    x = 11,690.79

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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.