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Finding the Fourth Proportional to 15,374.17, 23,073.80 and 7,980.74

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Solution

The fourth proportional to 15,374.17, 23,073.80 and 7,980.74 is: 11,977.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374.17 : 23,073.80 = 7,980.74 : x
  2. Step 2: Convert to fraction form
    15,374.17/23,073.80 = 7,980.74/x
  3. Step 3: Cross multiply
    15,374.17x = 23,073.80 × 7,980.74
  4. Step 4: Simplify right side
    15,374.17x = 184,146,059.66
  5. Step 5: Solve for x
    x = 184,146,059.66/15,374.17
  6. Step 6: Final answer
    x = 11,977.63

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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.