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Finding the Fourth Proportional to 11,599.74, 15,988.95 and 9,077.79

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Solution

The fourth proportional to 11,599.74, 15,988.95 and 9,077.79 is: 12,512.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,599.74 : 15,988.95 = 9,077.79 : x
  2. Step 2: Convert to fraction form
    11,599.74/15,988.95 = 9,077.79/x
  3. Step 3: Cross multiply
    11,599.74x = 15,988.95 × 9,077.79
  4. Step 4: Simplify right side
    11,599.74x = 145,144,330.42
  5. Step 5: Solve for x
    x = 145,144,330.42/11,599.74
  6. Step 6: Final answer
    x = 12,512.72

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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.