Home / 8,499.40-11,727.26-5,142.13

Finding the Fourth Proportional to 8,499.40, 11,727.26 and 5,142.13

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Solution

The fourth proportional to 8,499.40, 11,727.26 and 5,142.13 is: 7,094.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,499.40 : 11,727.26 = 5,142.13 : x
  2. Step 2: Convert to fraction form
    8,499.40/11,727.26 = 5,142.13/x
  3. Step 3: Cross multiply
    8,499.40x = 11,727.26 × 5,142.13
  4. Step 4: Simplify right side
    8,499.40x = 60,303,069.75
  5. Step 5: Solve for x
    x = 60,303,069.75/8,499.40
  6. Step 6: Final answer
    x = 7,094.98

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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.