Home / 8,587.93-12,886.76-3,657.05

Finding the Fourth Proportional to 8,587.93, 12,886.76 and 3,657.05

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Solution

The fourth proportional to 8,587.93, 12,886.76 and 3,657.05 is: 5,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.93 : 12,886.76 = 3,657.05 : x
  2. Step 2: Convert to fraction form
    8,587.93/12,886.76 = 3,657.05/x
  3. Step 3: Cross multiply
    8,587.93x = 12,886.76 × 3,657.05
  4. Step 4: Simplify right side
    8,587.93x = 47,127,567.02
  5. Step 5: Solve for x
    x = 47,127,567.02/8,587.93
  6. Step 6: Final answer
    x = 5,487.65

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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.