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Finding the Fourth Proportional to 8,387.40, 11,582.88 and 7,600.08

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Solution

The fourth proportional to 8,387.40, 11,582.88 and 7,600.08 is: 10,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.40 : 11,582.88 = 7,600.08 : x
  2. Step 2: Convert to fraction form
    8,387.40/11,582.88 = 7,600.08/x
  3. Step 3: Cross multiply
    8,387.40x = 11,582.88 × 7,600.08
  4. Step 4: Simplify right side
    8,387.40x = 88,030,814.63
  5. Step 5: Solve for x
    x = 88,030,814.63/8,387.40
  6. Step 6: Final answer
    x = 10,495.60

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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.