Home / 7,501.20-10,351.95-4,143.87

Finding the Fourth Proportional to 7,501.20, 10,351.95 and 4,143.87

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Solution

The fourth proportional to 7,501.20, 10,351.95 and 4,143.87 is: 5,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,501.20 : 10,351.95 = 4,143.87 : x
  2. Step 2: Convert to fraction form
    7,501.20/10,351.95 = 4,143.87/x
  3. Step 3: Cross multiply
    7,501.20x = 10,351.95 × 4,143.87
  4. Step 4: Simplify right side
    7,501.20x = 42,897,135.05
  5. Step 5: Solve for x
    x = 42,897,135.05/7,501.20
  6. Step 6: Final answer
    x = 5,718.70

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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.