Home / 10,704.60-14,770.45-9,109.20

Finding the Fourth Proportional to 10,704.60, 14,770.45 and 9,109.20

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Solution

The fourth proportional to 10,704.60, 14,770.45 and 9,109.20 is: 12,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,704.60 : 14,770.45 = 9,109.20 : x
  2. Step 2: Convert to fraction form
    10,704.60/14,770.45 = 9,109.20/x
  3. Step 3: Cross multiply
    10,704.60x = 14,770.45 × 9,109.20
  4. Step 4: Simplify right side
    10,704.60x = 134,546,946.06
  5. Step 5: Solve for x
    x = 134,546,946.06/10,704.60
  6. Step 6: Final answer
    x = 12,569.08

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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.