Home / 10,207.50-14,042.61-9,770.10

Finding the Fourth Proportional to 10,207.50, 14,042.61 and 9,770.10

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Solution

The fourth proportional to 10,207.50, 14,042.61 and 9,770.10 is: 13,440.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.50 : 14,042.61 = 9,770.10 : x
  2. Step 2: Convert to fraction form
    10,207.50/14,042.61 = 9,770.10/x
  3. Step 3: Cross multiply
    10,207.50x = 14,042.61 × 9,770.10
  4. Step 4: Simplify right side
    10,207.50x = 137,197,703.96
  5. Step 5: Solve for x
    x = 137,197,703.96/10,207.50
  6. Step 6: Final answer
    x = 13,440.87

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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.