Home / 10,367.28-15,484.85-9,378.57

Finding the Fourth Proportional to 10,367.28, 15,484.85 and 9,378.57

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Solution

The fourth proportional to 10,367.28, 15,484.85 and 9,378.57 is: 14,008.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.28 : 15,484.85 = 9,378.57 : x
  2. Step 2: Convert to fraction form
    10,367.28/15,484.85 = 9,378.57/x
  3. Step 3: Cross multiply
    10,367.28x = 15,484.85 × 9,378.57
  4. Step 4: Simplify right side
    10,367.28x = 145,225,749.66
  5. Step 5: Solve for x
    x = 145,225,749.66/10,367.28
  6. Step 6: Final answer
    x = 14,008.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.