Home / 7,981.10-11,943.30-6,952.40

Finding the Fourth Proportional to 7,981.10, 11,943.30 and 6,952.40

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Solution

The fourth proportional to 7,981.10, 11,943.30 and 6,952.40 is: 10,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.10 : 11,943.30 = 6,952.40 : x
  2. Step 2: Convert to fraction form
    7,981.10/11,943.30 = 6,952.40/x
  3. Step 3: Cross multiply
    7,981.10x = 11,943.30 × 6,952.40
  4. Step 4: Simplify right side
    7,981.10x = 83,034,598.92
  5. Step 5: Solve for x
    x = 83,034,598.92/7,981.10
  6. Step 6: Final answer
    x = 10,403.90

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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.