Home / 12,487.08-17,225.67-8,454.03

Finding the Fourth Proportional to 12,487.08, 17,225.67 and 8,454.03

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Solution

The fourth proportional to 12,487.08, 17,225.67 and 8,454.03 is: 11,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.08 : 17,225.67 = 8,454.03 : x
  2. Step 2: Convert to fraction form
    12,487.08/17,225.67 = 8,454.03/x
  3. Step 3: Cross multiply
    12,487.08x = 17,225.67 × 8,454.03
  4. Step 4: Simplify right side
    12,487.08x = 145,626,330.95
  5. Step 5: Solve for x
    x = 145,626,330.95/12,487.08
  6. Step 6: Final answer
    x = 11,662.16

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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.