Home / 8,587.39-11,851.58-4,811.57

Finding the Fourth Proportional to 8,587.39, 11,851.58 and 4,811.57

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Solution

The fourth proportional to 8,587.39, 11,851.58 and 4,811.57 is: 6,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.39 : 11,851.58 = 4,811.57 : x
  2. Step 2: Convert to fraction form
    8,587.39/11,851.58 = 4,811.57/x
  3. Step 3: Cross multiply
    8,587.39x = 11,851.58 × 4,811.57
  4. Step 4: Simplify right side
    8,587.39x = 57,024,682.72
  5. Step 5: Solve for x
    x = 57,024,682.72/8,587.39
  6. Step 6: Final answer
    x = 6,640.52

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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.