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Finding the Fourth Proportional to 6,602.70, 9,909.45 and 6,386.70

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Solution

The fourth proportional to 6,602.70, 9,909.45 and 6,386.70 is: 9,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.70 : 9,909.45 = 6,386.70 : x
  2. Step 2: Convert to fraction form
    6,602.70/9,909.45 = 6,386.70/x
  3. Step 3: Cross multiply
    6,602.70x = 9,909.45 × 6,386.70
  4. Step 4: Simplify right side
    6,602.70x = 63,288,684.32
  5. Step 5: Solve for x
    x = 63,288,684.32/6,602.70
  6. Step 6: Final answer
    x = 9,585.27

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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.