Home / 15,595.02-21,519.09-8,879.76

Finding the Fourth Proportional to 15,595.02, 21,519.09 and 8,879.76

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Solution

The fourth proportional to 15,595.02, 21,519.09 and 8,879.76 is: 12,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.02 : 21,519.09 = 8,879.76 : x
  2. Step 2: Convert to fraction form
    15,595.02/21,519.09 = 8,879.76/x
  3. Step 3: Cross multiply
    15,595.02x = 21,519.09 × 8,879.76
  4. Step 4: Simplify right side
    15,595.02x = 191,084,354.62
  5. Step 5: Solve for x
    x = 191,084,354.62/15,595.02
  6. Step 6: Final answer
    x = 12,252.91

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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.