Home / 10,120.37-15,157.15-9,770.04

Finding the Fourth Proportional to 10,120.37, 15,157.15 and 9,770.04

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Solution

The fourth proportional to 10,120.37, 15,157.15 and 9,770.04 is: 14,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.37 : 15,157.15 = 9,770.04 : x
  2. Step 2: Convert to fraction form
    10,120.37/15,157.15 = 9,770.04/x
  3. Step 3: Cross multiply
    10,120.37x = 15,157.15 × 9,770.04
  4. Step 4: Simplify right side
    10,120.37x = 148,085,937.36
  5. Step 5: Solve for x
    x = 148,085,937.36/10,120.37
  6. Step 6: Final answer
    x = 14,632.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.