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Finding the Fourth Proportional to 15,004.68, 20,715.30 and 10,295.88

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Solution

The fourth proportional to 15,004.68, 20,715.30 and 10,295.88 is: 14,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.68 : 20,715.30 = 10,295.88 : x
  2. Step 2: Convert to fraction form
    15,004.68/20,715.30 = 10,295.88/x
  3. Step 3: Cross multiply
    15,004.68x = 20,715.30 × 10,295.88
  4. Step 4: Simplify right side
    15,004.68x = 213,282,242.96
  5. Step 5: Solve for x
    x = 213,282,242.96/15,004.68
  6. Step 6: Final answer
    x = 14,214.38

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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.