Home / 11,292.60-15,583.68-6,512.40

Finding the Fourth Proportional to 11,292.60, 15,583.68 and 6,512.40

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Solution

The fourth proportional to 11,292.60, 15,583.68 and 6,512.40 is: 8,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,292.60 : 15,583.68 = 6,512.40 : x
  2. Step 2: Convert to fraction form
    11,292.60/15,583.68 = 6,512.40/x
  3. Step 3: Cross multiply
    11,292.60x = 15,583.68 × 6,512.40
  4. Step 4: Simplify right side
    11,292.60x = 101,487,157.63
  5. Step 5: Solve for x
    x = 101,487,157.63/11,292.60
  6. Step 6: Final answer
    x = 8,987.05

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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.