Home / 15,695.25-21,663.18-8,984.75

Finding the Fourth Proportional to 15,695.25, 21,663.18 and 8,984.75

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Solution

The fourth proportional to 15,695.25, 21,663.18 and 8,984.75 is: 12,401.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,695.25 : 21,663.18 = 8,984.75 : x
  2. Step 2: Convert to fraction form
    15,695.25/21,663.18 = 8,984.75/x
  3. Step 3: Cross multiply
    15,695.25x = 21,663.18 × 8,984.75
  4. Step 4: Simplify right side
    15,695.25x = 194,638,211.58
  5. Step 5: Solve for x
    x = 194,638,211.58/15,695.25
  6. Step 6: Final answer
    x = 12,401.09

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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.