Home / 15,749.80-21,742.50-10,740.04

Finding the Fourth Proportional to 15,749.80, 21,742.50 and 10,740.04

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Solution

The fourth proportional to 15,749.80, 21,742.50 and 10,740.04 is: 14,826.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.80 : 21,742.50 = 10,740.04 : x
  2. Step 2: Convert to fraction form
    15,749.80/21,742.50 = 10,740.04/x
  3. Step 3: Cross multiply
    15,749.80x = 21,742.50 × 10,740.04
  4. Step 4: Simplify right side
    15,749.80x = 233,515,319.70
  5. Step 5: Solve for x
    x = 233,515,319.70/15,749.80
  6. Step 6: Final answer
    x = 14,826.56

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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.