Home / 15,295.80-21,108.23-8,581.44

Finding the Fourth Proportional to 15,295.80, 21,108.23 and 8,581.44

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Solution

The fourth proportional to 15,295.80, 21,108.23 and 8,581.44 is: 11,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.80 : 21,108.23 = 8,581.44 : x
  2. Step 2: Convert to fraction form
    15,295.80/21,108.23 = 8,581.44/x
  3. Step 3: Cross multiply
    15,295.80x = 21,108.23 × 8,581.44
  4. Step 4: Simplify right side
    15,295.80x = 181,139,077.68
  5. Step 5: Solve for x
    x = 181,139,077.68/15,295.80
  6. Step 6: Final answer
    x = 11,842.40

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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.