Home / 10,081.73-15,123.51-5,155.52

Finding the Fourth Proportional to 10,081.73, 15,123.51 and 5,155.52

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Solution

The fourth proportional to 10,081.73, 15,123.51 and 5,155.52 is: 7,733.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.73 : 15,123.51 = 5,155.52 : x
  2. Step 2: Convert to fraction form
    10,081.73/15,123.51 = 5,155.52/x
  3. Step 3: Cross multiply
    10,081.73x = 15,123.51 × 5,155.52
  4. Step 4: Simplify right side
    10,081.73x = 77,969,482.66
  5. Step 5: Solve for x
    x = 77,969,482.66/10,081.73
  6. Step 6: Final answer
    x = 7,733.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.