Home / 10,679.40-14,742.45-7,615.17

Finding the Fourth Proportional to 10,679.40, 14,742.45 and 7,615.17

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Solution

The fourth proportional to 10,679.40, 14,742.45 and 7,615.17 is: 10,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,679.40 : 14,742.45 = 7,615.17 : x
  2. Step 2: Convert to fraction form
    10,679.40/14,742.45 = 7,615.17/x
  3. Step 3: Cross multiply
    10,679.40x = 14,742.45 × 7,615.17
  4. Step 4: Simplify right side
    10,679.40x = 112,266,262.97
  5. Step 5: Solve for x
    x = 112,266,262.97/10,679.40
  6. Step 6: Final answer
    x = 10,512.41

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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.