Home / 7,519.80-10,385.85-5,125.67

Finding the Fourth Proportional to 7,519.80, 10,385.85 and 5,125.67

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Solution

The fourth proportional to 7,519.80, 10,385.85 and 5,125.67 is: 7,079.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,519.80 : 10,385.85 = 5,125.67 : x
  2. Step 2: Convert to fraction form
    7,519.80/10,385.85 = 5,125.67/x
  3. Step 3: Cross multiply
    7,519.80x = 10,385.85 × 5,125.67
  4. Step 4: Simplify right side
    7,519.80x = 53,234,439.77
  5. Step 5: Solve for x
    x = 53,234,439.77/7,519.80
  6. Step 6: Final answer
    x = 7,079.24

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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.