Home / 8,723.40-12,036.66-5,187.48

Finding the Fourth Proportional to 8,723.40, 12,036.66 and 5,187.48

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Solution

The fourth proportional to 8,723.40, 12,036.66 and 5,187.48 is: 7,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.40 : 12,036.66 = 5,187.48 : x
  2. Step 2: Convert to fraction form
    8,723.40/12,036.66 = 5,187.48/x
  3. Step 3: Cross multiply
    8,723.40x = 12,036.66 × 5,187.48
  4. Step 4: Simplify right side
    8,723.40x = 62,439,933.02
  5. Step 5: Solve for x
    x = 62,439,933.02/8,723.40
  6. Step 6: Final answer
    x = 7,157.75

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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.