Home / 8,390.67-12,587.60-2,842.53

Finding the Fourth Proportional to 8,390.67, 12,587.60 and 2,842.53

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Solution

The fourth proportional to 8,390.67, 12,587.60 and 2,842.53 is: 4,264.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.67 : 12,587.60 = 2,842.53 : x
  2. Step 2: Convert to fraction form
    8,390.67/12,587.60 = 2,842.53/x
  3. Step 3: Cross multiply
    8,390.67x = 12,587.60 × 2,842.53
  4. Step 4: Simplify right side
    8,390.67x = 35,780,630.63
  5. Step 5: Solve for x
    x = 35,780,630.63/8,390.67
  6. Step 6: Final answer
    x = 4,264.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.