Home / 10,250.40-15,337.20-9,328.80

Finding the Fourth Proportional to 10,250.40, 15,337.20 and 9,328.80

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Solution

The fourth proportional to 10,250.40, 15,337.20 and 9,328.80 is: 13,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,250.40 : 15,337.20 = 9,328.80 : x
  2. Step 2: Convert to fraction form
    10,250.40/15,337.20 = 9,328.80/x
  3. Step 3: Cross multiply
    10,250.40x = 15,337.20 × 9,328.80
  4. Step 4: Simplify right side
    10,250.40x = 143,077,671.36
  5. Step 5: Solve for x
    x = 143,077,671.36/10,250.40
  6. Step 6: Final answer
    x = 13,958.25

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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.