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Finding the Fourth Proportional to 9,147.52, 12,623.52 and 4,955.76

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Solution

The fourth proportional to 9,147.52, 12,623.52 and 4,955.76 is: 6,838.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.52 : 12,623.52 = 4,955.76 : x
  2. Step 2: Convert to fraction form
    9,147.52/12,623.52 = 4,955.76/x
  3. Step 3: Cross multiply
    9,147.52x = 12,623.52 × 4,955.76
  4. Step 4: Simplify right side
    9,147.52x = 62,559,135.48
  5. Step 5: Solve for x
    x = 62,559,135.48/9,147.52
  6. Step 6: Final answer
    x = 6,838.92

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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.