Home / 7,981.14-11,011.13-4,622.13

Finding the Fourth Proportional to 7,981.14, 11,011.13 and 4,622.13

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Solution

The fourth proportional to 7,981.14, 11,011.13 and 4,622.13 is: 6,376.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.14 : 11,011.13 = 4,622.13 : x
  2. Step 2: Convert to fraction form
    7,981.14/11,011.13 = 4,622.13/x
  3. Step 3: Cross multiply
    7,981.14x = 11,011.13 × 4,622.13
  4. Step 4: Simplify right side
    7,981.14x = 50,894,851.20
  5. Step 5: Solve for x
    x = 50,894,851.20/7,981.14
  6. Step 6: Final answer
    x = 6,376.89

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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.