Home / 10,309.86-14,184.45-7,947.90

Finding the Fourth Proportional to 10,309.86, 14,184.45 and 7,947.90

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Solution

The fourth proportional to 10,309.86, 14,184.45 and 7,947.90 is: 10,934.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.86 : 14,184.45 = 7,947.90 : x
  2. Step 2: Convert to fraction form
    10,309.86/14,184.45 = 7,947.90/x
  3. Step 3: Cross multiply
    10,309.86x = 14,184.45 × 7,947.90
  4. Step 4: Simplify right side
    10,309.86x = 112,736,590.16
  5. Step 5: Solve for x
    x = 112,736,590.16/10,309.86
  6. Step 6: Final answer
    x = 10,934.83

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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.