Home / 10,135.45-15,211.23-4,589.20

Finding the Fourth Proportional to 10,135.45, 15,211.23 and 4,589.20

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Solution

The fourth proportional to 10,135.45, 15,211.23 and 4,589.20 is: 6,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.45 : 15,211.23 = 4,589.20 : x
  2. Step 2: Convert to fraction form
    10,135.45/15,211.23 = 4,589.20/x
  3. Step 3: Cross multiply
    10,135.45x = 15,211.23 × 4,589.20
  4. Step 4: Simplify right side
    10,135.45x = 69,807,376.72
  5. Step 5: Solve for x
    x = 69,807,376.72/10,135.45
  6. Step 6: Final answer
    x = 6,887.45

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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.