Home / 10,257.17-14,156.73-9,789.71

Finding the Fourth Proportional to 10,257.17, 14,156.73 and 9,789.71

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Solution

The fourth proportional to 10,257.17, 14,156.73 and 9,789.71 is: 13,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.17 : 14,156.73 = 9,789.71 : x
  2. Step 2: Convert to fraction form
    10,257.17/14,156.73 = 9,789.71/x
  3. Step 3: Cross multiply
    10,257.17x = 14,156.73 × 9,789.71
  4. Step 4: Simplify right side
    10,257.17x = 138,590,210.46
  5. Step 5: Solve for x
    x = 138,590,210.46/10,257.17
  6. Step 6: Final answer
    x = 13,511.55

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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.