Home / 15,439.70-23,163.39-7,125.51

Finding the Fourth Proportional to 15,439.70, 23,163.39 and 7,125.51

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Solution

The fourth proportional to 15,439.70, 23,163.39 and 7,125.51 is: 10,690.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,439.70 : 23,163.39 = 7,125.51 : x
  2. Step 2: Convert to fraction form
    15,439.70/23,163.39 = 7,125.51/x
  3. Step 3: Cross multiply
    15,439.70x = 23,163.39 × 7,125.51
  4. Step 4: Simplify right side
    15,439.70x = 165,050,967.08
  5. Step 5: Solve for x
    x = 165,050,967.08/15,439.70
  6. Step 6: Final answer
    x = 10,690.04

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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.