Home / 8,996.99-12,417.45-5,642.70

Finding the Fourth Proportional to 8,996.99, 12,417.45 and 5,642.70

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Solution

The fourth proportional to 8,996.99, 12,417.45 and 5,642.70 is: 7,787.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,996.99 : 12,417.45 = 5,642.70 : x
  2. Step 2: Convert to fraction form
    8,996.99/12,417.45 = 5,642.70/x
  3. Step 3: Cross multiply
    8,996.99x = 12,417.45 × 5,642.70
  4. Step 4: Simplify right side
    8,996.99x = 70,067,945.12
  5. Step 5: Solve for x
    x = 70,067,945.12/8,996.99
  6. Step 6: Final answer
    x = 7,787.94

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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.