Home / 12,972.04-17,898.12-7,934.42

Finding the Fourth Proportional to 12,972.04, 17,898.12 and 7,934.42

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Solution

The fourth proportional to 12,972.04, 17,898.12 and 7,934.42 is: 10,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.04 : 17,898.12 = 7,934.42 : x
  2. Step 2: Convert to fraction form
    12,972.04/17,898.12 = 7,934.42/x
  3. Step 3: Cross multiply
    12,972.04x = 17,898.12 × 7,934.42
  4. Step 4: Simplify right side
    12,972.04x = 142,011,264.26
  5. Step 5: Solve for x
    x = 142,011,264.26/12,972.04
  6. Step 6: Final answer
    x = 10,947.49

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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.