Home / 15,102.55-20,849.10-9,440.45

Finding the Fourth Proportional to 15,102.55, 20,849.10 and 9,440.45

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Solution

The fourth proportional to 15,102.55, 20,849.10 and 9,440.45 is: 13,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,102.55 : 20,849.10 = 9,440.45 : x
  2. Step 2: Convert to fraction form
    15,102.55/20,849.10 = 9,440.45/x
  3. Step 3: Cross multiply
    15,102.55x = 20,849.10 × 9,440.45
  4. Step 4: Simplify right side
    15,102.55x = 196,824,824.63
  5. Step 5: Solve for x
    x = 196,824,824.63/15,102.55
  6. Step 6: Final answer
    x = 13,032.55

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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.