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Finding the Fourth Proportional to 14,484.30, 19,989.12 and 8,818.16

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Solution

The fourth proportional to 14,484.30, 19,989.12 and 8,818.16 is: 12,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,484.30 : 19,989.12 = 8,818.16 : x
  2. Step 2: Convert to fraction form
    14,484.30/19,989.12 = 8,818.16/x
  3. Step 3: Cross multiply
    14,484.30x = 19,989.12 × 8,818.16
  4. Step 4: Simplify right side
    14,484.30x = 176,267,158.47
  5. Step 5: Solve for x
    x = 176,267,158.47/14,484.30
  6. Step 6: Final answer
    x = 12,169.53

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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.