Home / 10,980.28-15,120.30-10,750.24

Finding the Fourth Proportional to 10,980.28, 15,120.30 and 10,750.24

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Solution

The fourth proportional to 10,980.28, 15,120.30 and 10,750.24 is: 14,803.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.28 : 15,120.30 = 10,750.24 : x
  2. Step 2: Convert to fraction form
    10,980.28/15,120.30 = 10,750.24/x
  3. Step 3: Cross multiply
    10,980.28x = 15,120.30 × 10,750.24
  4. Step 4: Simplify right side
    10,980.28x = 162,546,853.87
  5. Step 5: Solve for x
    x = 162,546,853.87/10,980.28
  6. Step 6: Final answer
    x = 14,803.53

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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.