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Finding the Fourth Proportional to 14,312.60, 21,443.03 and 5,978.10

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Solution

The fourth proportional to 14,312.60, 21,443.03 and 5,978.10 is: 8,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,312.60 : 21,443.03 = 5,978.10 : x
  2. Step 2: Convert to fraction form
    14,312.60/21,443.03 = 5,978.10/x
  3. Step 3: Cross multiply
    14,312.60x = 21,443.03 × 5,978.10
  4. Step 4: Simplify right side
    14,312.60x = 128,188,650.58
  5. Step 5: Solve for x
    x = 128,188,650.58/14,312.60
  6. Step 6: Final answer
    x = 8,956.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.