Home / 10,040.60-15,060.90-7,275.80

Finding the Fourth Proportional to 10,040.60, 15,060.90 and 7,275.80

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Solution

The fourth proportional to 10,040.60, 15,060.90 and 7,275.80 is: 10,913.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.60 : 15,060.90 = 7,275.80 : x
  2. Step 2: Convert to fraction form
    10,040.60/15,060.90 = 7,275.80/x
  3. Step 3: Cross multiply
    10,040.60x = 15,060.90 × 7,275.80
  4. Step 4: Simplify right side
    10,040.60x = 109,580,096.22
  5. Step 5: Solve for x
    x = 109,580,096.22/10,040.60
  6. Step 6: Final answer
    x = 10,913.70

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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.