Home / 8,765.10-12,095.90-4,988.55

Finding the Fourth Proportional to 8,765.10, 12,095.90 and 4,988.55

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Solution

The fourth proportional to 8,765.10, 12,095.90 and 4,988.55 is: 6,884.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.10 : 12,095.90 = 4,988.55 : x
  2. Step 2: Convert to fraction form
    8,765.10/12,095.90 = 4,988.55/x
  3. Step 3: Cross multiply
    8,765.10x = 12,095.90 × 4,988.55
  4. Step 4: Simplify right side
    8,765.10x = 60,341,054.62
  5. Step 5: Solve for x
    x = 60,341,054.62/8,765.10
  6. Step 6: Final answer
    x = 6,884.24

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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.