Home / 12,572.42-17,349.46-6,983.78

Finding the Fourth Proportional to 12,572.42, 17,349.46 and 6,983.78

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Solution

The fourth proportional to 12,572.42, 17,349.46 and 6,983.78 is: 9,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.42 : 17,349.46 = 6,983.78 : x
  2. Step 2: Convert to fraction form
    12,572.42/17,349.46 = 6,983.78/x
  3. Step 3: Cross multiply
    12,572.42x = 17,349.46 × 6,983.78
  4. Step 4: Simplify right side
    12,572.42x = 121,164,707.55
  5. Step 5: Solve for x
    x = 121,164,707.55/12,572.42
  6. Step 6: Final answer
    x = 9,637.35

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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.