Home / 10,647.02-15,887.26-9,540.12

Finding the Fourth Proportional to 10,647.02, 15,887.26 and 9,540.12

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Solution

The fourth proportional to 10,647.02, 15,887.26 and 9,540.12 is: 14,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.02 : 15,887.26 = 9,540.12 : x
  2. Step 2: Convert to fraction form
    10,647.02/15,887.26 = 9,540.12/x
  3. Step 3: Cross multiply
    10,647.02x = 15,887.26 × 9,540.12
  4. Step 4: Simplify right side
    10,647.02x = 151,566,366.87
  5. Step 5: Solve for x
    x = 151,566,366.87/10,647.02
  6. Step 6: Final answer
    x = 14,235.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.