Home / 10,945.28-15,106.08-6,230.72

Finding the Fourth Proportional to 10,945.28, 15,106.08 and 6,230.72

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Solution

The fourth proportional to 10,945.28, 15,106.08 and 6,230.72 is: 8,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.28 : 15,106.08 = 6,230.72 : x
  2. Step 2: Convert to fraction form
    10,945.28/15,106.08 = 6,230.72/x
  3. Step 3: Cross multiply
    10,945.28x = 15,106.08 × 6,230.72
  4. Step 4: Simplify right side
    10,945.28x = 94,121,754.78
  5. Step 5: Solve for x
    x = 94,121,754.78/10,945.28
  6. Step 6: Final answer
    x = 8,599.30

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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.