Home / 8,909.40-13,364.10-5,971.80

Finding the Fourth Proportional to 8,909.40, 13,364.10 and 5,971.80

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Solution

The fourth proportional to 8,909.40, 13,364.10 and 5,971.80 is: 8,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.40 : 13,364.10 = 5,971.80 : x
  2. Step 2: Convert to fraction form
    8,909.40/13,364.10 = 5,971.80/x
  3. Step 3: Cross multiply
    8,909.40x = 13,364.10 × 5,971.80
  4. Step 4: Simplify right side
    8,909.40x = 79,807,732.38
  5. Step 5: Solve for x
    x = 79,807,732.38/8,909.40
  6. Step 6: Final answer
    x = 8,957.70

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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.