Home / 8,587.26-12,870.11-4,638.35

Finding the Fourth Proportional to 8,587.26, 12,870.11 and 4,638.35

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Solution

The fourth proportional to 8,587.26, 12,870.11 and 4,638.35 is: 6,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.26 : 12,870.11 = 4,638.35 : x
  2. Step 2: Convert to fraction form
    8,587.26/12,870.11 = 4,638.35/x
  3. Step 3: Cross multiply
    8,587.26x = 12,870.11 × 4,638.35
  4. Step 4: Simplify right side
    8,587.26x = 59,696,118.49
  5. Step 5: Solve for x
    x = 59,696,118.49/8,587.26
  6. Step 6: Final answer
    x = 6,951.71

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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.