Home / 13,937.60-19,233.12-7,648.80

Finding the Fourth Proportional to 13,937.60, 19,233.12 and 7,648.80

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Solution

The fourth proportional to 13,937.60, 19,233.12 and 7,648.80 is: 10,554.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.60 : 19,233.12 = 7,648.80 : x
  2. Step 2: Convert to fraction form
    13,937.60/19,233.12 = 7,648.80/x
  3. Step 3: Cross multiply
    13,937.60x = 19,233.12 × 7,648.80
  4. Step 4: Simplify right side
    13,937.60x = 147,110,288.26
  5. Step 5: Solve for x
    x = 147,110,288.26/13,937.60
  6. Step 6: Final answer
    x = 10,554.92

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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.