Home / 8,390.48-12,561.96-6,973.52

Finding the Fourth Proportional to 8,390.48, 12,561.96 and 6,973.52

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Solution

The fourth proportional to 8,390.48, 12,561.96 and 6,973.52 is: 10,440.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.48 : 12,561.96 = 6,973.52 : x
  2. Step 2: Convert to fraction form
    8,390.48/12,561.96 = 6,973.52/x
  3. Step 3: Cross multiply
    8,390.48x = 12,561.96 × 6,973.52
  4. Step 4: Simplify right side
    8,390.48x = 87,601,079.30
  5. Step 5: Solve for x
    x = 87,601,079.30/8,390.48
  6. Step 6: Final answer
    x = 10,440.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.