Home / 15,659.02-21,609.75-8,585.02

Finding the Fourth Proportional to 15,659.02, 21,609.75 and 8,585.02

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Solution

The fourth proportional to 15,659.02, 21,609.75 and 8,585.02 is: 11,847.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.02 : 21,609.75 = 8,585.02 : x
  2. Step 2: Convert to fraction form
    15,659.02/21,609.75 = 8,585.02/x
  3. Step 3: Cross multiply
    15,659.02x = 21,609.75 × 8,585.02
  4. Step 4: Simplify right side
    15,659.02x = 185,520,135.95
  5. Step 5: Solve for x
    x = 185,520,135.95/15,659.02
  6. Step 6: Final answer
    x = 11,847.49

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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.