Home / 8,909.07-12,286.95-5,501.96

Finding the Fourth Proportional to 8,909.07, 12,286.95 and 5,501.96

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Solution

The fourth proportional to 8,909.07, 12,286.95 and 5,501.96 is: 7,588.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.07 : 12,286.95 = 5,501.96 : x
  2. Step 2: Convert to fraction form
    8,909.07/12,286.95 = 5,501.96/x
  3. Step 3: Cross multiply
    8,909.07x = 12,286.95 × 5,501.96
  4. Step 4: Simplify right side
    8,909.07x = 67,602,279.91
  5. Step 5: Solve for x
    x = 67,602,279.91/8,909.07
  6. Step 6: Final answer
    x = 7,588.03

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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.