Home / 15,505.32-23,260.14-5,115.72

Finding the Fourth Proportional to 15,505.32, 23,260.14 and 5,115.72

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Solution

The fourth proportional to 15,505.32, 23,260.14 and 5,115.72 is: 7,674.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,505.32 : 23,260.14 = 5,115.72 : x
  2. Step 2: Convert to fraction form
    15,505.32/23,260.14 = 5,115.72/x
  3. Step 3: Cross multiply
    15,505.32x = 23,260.14 × 5,115.72
  4. Step 4: Simplify right side
    15,505.32x = 118,992,363.40
  5. Step 5: Solve for x
    x = 118,992,363.40/15,505.32
  6. Step 6: Final answer
    x = 7,674.29

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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.