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Finding the Fourth Proportional to 10,739, 14,820.28 and 6,708.20

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Solution

The fourth proportional to 10,739, 14,820.28 and 6,708.20 is: 9,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,739 : 14,820.28 = 6,708.20 : x
  2. Step 2: Convert to fraction form
    10,739/14,820.28 = 6,708.20/x
  3. Step 3: Cross multiply
    10,739x = 14,820.28 × 6,708.20
  4. Step 4: Simplify right side
    10,739x = 99,417,402.30
  5. Step 5: Solve for x
    x = 99,417,402.30/10,739
  6. Step 6: Final answer
    x = 9,257.60

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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.