Home / 15,973.68-22,051.56-12,380.72

Finding the Fourth Proportional to 15,973.68, 22,051.56 and 12,380.72

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Solution

The fourth proportional to 15,973.68, 22,051.56 and 12,380.72 is: 17,091.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,973.68 : 22,051.56 = 12,380.72 : x
  2. Step 2: Convert to fraction form
    15,973.68/22,051.56 = 12,380.72/x
  3. Step 3: Cross multiply
    15,973.68x = 22,051.56 × 12,380.72
  4. Step 4: Simplify right side
    15,973.68x = 273,014,189.92
  5. Step 5: Solve for x
    x = 273,014,189.92/15,973.68
  6. Step 6: Final answer
    x = 17,091.50

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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.