Home / 9,947.52-13,733.28-6,415.92

Finding the Fourth Proportional to 9,947.52, 13,733.28 and 6,415.92

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Solution

The fourth proportional to 9,947.52, 13,733.28 and 6,415.92 is: 8,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.52 : 13,733.28 = 6,415.92 : x
  2. Step 2: Convert to fraction form
    9,947.52/13,733.28 = 6,415.92/x
  3. Step 3: Cross multiply
    9,947.52x = 13,733.28 × 6,415.92
  4. Step 4: Simplify right side
    9,947.52x = 88,111,625.82
  5. Step 5: Solve for x
    x = 88,111,625.82/9,947.52
  6. Step 6: Final answer
    x = 8,857.65

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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.