Home / 6,943.40-10,402.96-5,780.87

Finding the Fourth Proportional to 6,943.40, 10,402.96 and 5,780.87

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Solution

The fourth proportional to 6,943.40, 10,402.96 and 5,780.87 is: 8,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,943.40 : 10,402.96 = 5,780.87 : x
  2. Step 2: Convert to fraction form
    6,943.40/10,402.96 = 5,780.87/x
  3. Step 3: Cross multiply
    6,943.40x = 10,402.96 × 5,780.87
  4. Step 4: Simplify right side
    6,943.40x = 60,138,159.38
  5. Step 5: Solve for x
    x = 60,138,159.38/6,943.40
  6. Step 6: Final answer
    x = 8,661.20

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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.