Home / 8,860.22-12,231.54-6,866.30

Finding the Fourth Proportional to 8,860.22, 12,231.54 and 6,866.30

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Solution

The fourth proportional to 8,860.22, 12,231.54 and 6,866.30 is: 9,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.22 : 12,231.54 = 6,866.30 : x
  2. Step 2: Convert to fraction form
    8,860.22/12,231.54 = 6,866.30/x
  3. Step 3: Cross multiply
    8,860.22x = 12,231.54 × 6,866.30
  4. Step 4: Simplify right side
    8,860.22x = 83,985,423.10
  5. Step 5: Solve for x
    x = 83,985,423.10/8,860.22
  6. Step 6: Final answer
    x = 9,478.93

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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.