Home / 8,860.19-12,228.83-5,085.90

Finding the Fourth Proportional to 8,860.19, 12,228.83 and 5,085.90

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Solution

The fourth proportional to 8,860.19, 12,228.83 and 5,085.90 is: 7,019.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.19 : 12,228.83 = 5,085.90 : x
  2. Step 2: Convert to fraction form
    8,860.19/12,228.83 = 5,085.90/x
  3. Step 3: Cross multiply
    8,860.19x = 12,228.83 × 5,085.90
  4. Step 4: Simplify right side
    8,860.19x = 62,194,646.00
  5. Step 5: Solve for x
    x = 62,194,646.00/8,860.19
  6. Step 6: Final answer
    x = 7,019.56

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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.