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Finding the Fourth Proportional to 14,076, 19,425.60 and 8,487.36

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Solution

The fourth proportional to 14,076, 19,425.60 and 8,487.36 is: 11,712.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076 : 19,425.60 = 8,487.36 : x
  2. Step 2: Convert to fraction form
    14,076/19,425.60 = 8,487.36/x
  3. Step 3: Cross multiply
    14,076x = 19,425.60 × 8,487.36
  4. Step 4: Simplify right side
    14,076x = 164,872,060.42
  5. Step 5: Solve for x
    x = 164,872,060.42/14,076
  6. Step 6: Final answer
    x = 11,712.99

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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.