Home / 10,917.56-15,065.28-6,071.36

Finding the Fourth Proportional to 10,917.56, 15,065.28 and 6,071.36

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Solution

The fourth proportional to 10,917.56, 15,065.28 and 6,071.36 is: 8,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.56 : 15,065.28 = 6,071.36 : x
  2. Step 2: Convert to fraction form
    10,917.56/15,065.28 = 6,071.36/x
  3. Step 3: Cross multiply
    10,917.56x = 15,065.28 × 6,071.36
  4. Step 4: Simplify right side
    10,917.56x = 91,466,715.90
  5. Step 5: Solve for x
    x = 91,466,715.90/10,917.56
  6. Step 6: Final answer
    x = 8,377.95

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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.