Home / 10,247.28-14,143.32-8,004.72

Finding the Fourth Proportional to 10,247.28, 14,143.32 and 8,004.72

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Solution

The fourth proportional to 10,247.28, 14,143.32 and 8,004.72 is: 11,048.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.28 : 14,143.32 = 8,004.72 : x
  2. Step 2: Convert to fraction form
    10,247.28/14,143.32 = 8,004.72/x
  3. Step 3: Cross multiply
    10,247.28x = 14,143.32 × 8,004.72
  4. Step 4: Simplify right side
    10,247.28x = 113,213,316.47
  5. Step 5: Solve for x
    x = 113,213,316.47/10,247.28
  6. Step 6: Final answer
    x = 11,048.13

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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.