Home / 8,770.07-13,134.08-6,391.77

Finding the Fourth Proportional to 8,770.07, 13,134.08 and 6,391.77

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Solution

The fourth proportional to 8,770.07, 13,134.08 and 6,391.77 is: 9,572.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.07 : 13,134.08 = 6,391.77 : x
  2. Step 2: Convert to fraction form
    8,770.07/13,134.08 = 6,391.77/x
  3. Step 3: Cross multiply
    8,770.07x = 13,134.08 × 6,391.77
  4. Step 4: Simplify right side
    8,770.07x = 83,950,034.50
  5. Step 5: Solve for x
    x = 83,950,034.50/8,770.07
  6. Step 6: Final answer
    x = 9,572.34

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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.