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Finding the Fourth Proportional to 9,353.05, 12,911.84 and 7,332.91

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Solution

The fourth proportional to 9,353.05, 12,911.84 and 7,332.91 is: 10,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,353.05 : 12,911.84 = 7,332.91 : x
  2. Step 2: Convert to fraction form
    9,353.05/12,911.84 = 7,332.91/x
  3. Step 3: Cross multiply
    9,353.05x = 12,911.84 × 7,332.91
  4. Step 4: Simplify right side
    9,353.05x = 94,681,360.65
  5. Step 5: Solve for x
    x = 94,681,360.65/9,353.05
  6. Step 6: Final answer
    x = 10,123.05

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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.