Home / 8,722.15-12,036.40-4,743.22

Finding the Fourth Proportional to 8,722.15, 12,036.40 and 4,743.22

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Solution

The fourth proportional to 8,722.15, 12,036.40 and 4,743.22 is: 6,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.15 : 12,036.40 = 4,743.22 : x
  2. Step 2: Convert to fraction form
    8,722.15/12,036.40 = 4,743.22/x
  3. Step 3: Cross multiply
    8,722.15x = 12,036.40 × 4,743.22
  4. Step 4: Simplify right side
    8,722.15x = 57,091,293.21
  5. Step 5: Solve for x
    x = 57,091,293.21/8,722.15
  6. Step 6: Final answer
    x = 6,545.55

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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.