Home / 8,360.48-11,538.65-5,174.80

Finding the Fourth Proportional to 8,360.48, 11,538.65 and 5,174.80

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Solution

The fourth proportional to 8,360.48, 11,538.65 and 5,174.80 is: 7,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.48 : 11,538.65 = 5,174.80 : x
  2. Step 2: Convert to fraction form
    8,360.48/11,538.65 = 5,174.80/x
  3. Step 3: Cross multiply
    8,360.48x = 11,538.65 × 5,174.80
  4. Step 4: Simplify right side
    8,360.48x = 59,710,151.30
  5. Step 5: Solve for x
    x = 59,710,151.30/8,360.48
  6. Step 6: Final answer
    x = 7,141.95

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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.