Home / 12,587.21-17,372.86-9,597.70

Finding the Fourth Proportional to 12,587.21, 17,372.86 and 9,597.70

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Solution

The fourth proportional to 12,587.21, 17,372.86 and 9,597.70 is: 13,246.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.21 : 17,372.86 = 9,597.70 : x
  2. Step 2: Convert to fraction form
    12,587.21/17,372.86 = 9,597.70/x
  3. Step 3: Cross multiply
    12,587.21x = 17,372.86 × 9,597.70
  4. Step 4: Simplify right side
    12,587.21x = 166,739,550.13
  5. Step 5: Solve for x
    x = 166,739,550.13/12,587.21
  6. Step 6: Final answer
    x = 13,246.75

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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.