Home / 10,279.65-15,420.44-2,884.07

Finding the Fourth Proportional to 10,279.65, 15,420.44 and 2,884.07

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Solution

The fourth proportional to 10,279.65, 15,420.44 and 2,884.07 is: 4,326.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.65 : 15,420.44 = 2,884.07 : x
  2. Step 2: Convert to fraction form
    10,279.65/15,420.44 = 2,884.07/x
  3. Step 3: Cross multiply
    10,279.65x = 15,420.44 × 2,884.07
  4. Step 4: Simplify right side
    10,279.65x = 44,473,652.52
  5. Step 5: Solve for x
    x = 44,473,652.52/10,279.65
  6. Step 6: Final answer
    x = 4,326.38

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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.