Home / 10,475.10-15,685.89-10,163.43

Finding the Fourth Proportional to 10,475.10, 15,685.89 and 10,163.43

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Solution

The fourth proportional to 10,475.10, 15,685.89 and 10,163.43 is: 15,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,475.10 : 15,685.89 = 10,163.43 : x
  2. Step 2: Convert to fraction form
    10,475.10/15,685.89 = 10,163.43/x
  3. Step 3: Cross multiply
    10,475.10x = 15,685.89 × 10,163.43
  4. Step 4: Simplify right side
    10,475.10x = 159,422,445.00
  5. Step 5: Solve for x
    x = 159,422,445.00/10,475.10
  6. Step 6: Final answer
    x = 15,219.18

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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.