Home / 11,068.76-15,278.10-7,294.70

Finding the Fourth Proportional to 11,068.76, 15,278.10 and 7,294.70

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Solution

The fourth proportional to 11,068.76, 15,278.10 and 7,294.70 is: 10,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,068.76 : 15,278.10 = 7,294.70 : x
  2. Step 2: Convert to fraction form
    11,068.76/15,278.10 = 7,294.70/x
  3. Step 3: Cross multiply
    11,068.76x = 15,278.10 × 7,294.70
  4. Step 4: Simplify right side
    11,068.76x = 111,449,156.07
  5. Step 5: Solve for x
    x = 111,449,156.07/11,068.76
  6. Step 6: Final answer
    x = 10,068.80

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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.