Home / 18,967.48-28,447.38-5,113.24

Finding the Fourth Proportional to 18,967.48, 28,447.38 and 5,113.24

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Solution

The fourth proportional to 18,967.48, 28,447.38 and 5,113.24 is: 7,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.48 : 28,447.38 = 5,113.24 : x
  2. Step 2: Convert to fraction form
    18,967.48/28,447.38 = 5,113.24/x
  3. Step 3: Cross multiply
    18,967.48x = 28,447.38 × 5,113.24
  4. Step 4: Simplify right side
    18,967.48x = 145,458,281.31
  5. Step 5: Solve for x
    x = 145,458,281.31/18,967.48
  6. Step 6: Final answer
    x = 7,668.82

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1.5x scale

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.