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Finding the Fourth Proportional to 28,374.12, 42,560.96 and 9,656.06

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Solution

The fourth proportional to 28,374.12, 42,560.96 and 9,656.06 is: 14,484.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.12 : 42,560.96 = 9,656.06 : x
  2. Step 2: Convert to fraction form
    28,374.12/42,560.96 = 9,656.06/x
  3. Step 3: Cross multiply
    28,374.12x = 42,560.96 × 9,656.06
  4. Step 4: Simplify right side
    28,374.12x = 410,970,922.33
  5. Step 5: Solve for x
    x = 410,970,922.33/28,374.12
  6. Step 6: Final answer
    x = 14,484.01

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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.