Home / 12,713.04-17,543.52-7,123.68

Finding the Fourth Proportional to 12,713.04, 17,543.52 and 7,123.68

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Solution

The fourth proportional to 12,713.04, 17,543.52 and 7,123.68 is: 9,830.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.04 : 17,543.52 = 7,123.68 : x
  2. Step 2: Convert to fraction form
    12,713.04/17,543.52 = 7,123.68/x
  3. Step 3: Cross multiply
    12,713.04x = 17,543.52 × 7,123.68
  4. Step 4: Simplify right side
    12,713.04x = 124,974,422.55
  5. Step 5: Solve for x
    x = 124,974,422.55/12,713.04
  6. Step 6: Final answer
    x = 9,830.41

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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.