Home / 15,826.56-21,841.52-8,752.80

Finding the Fourth Proportional to 15,826.56, 21,841.52 and 8,752.80

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Solution

The fourth proportional to 15,826.56, 21,841.52 and 8,752.80 is: 12,079.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,826.56 : 21,841.52 = 8,752.80 : x
  2. Step 2: Convert to fraction form
    15,826.56/21,841.52 = 8,752.80/x
  3. Step 3: Cross multiply
    15,826.56x = 21,841.52 × 8,752.80
  4. Step 4: Simplify right side
    15,826.56x = 191,174,456.26
  5. Step 5: Solve for x
    x = 191,174,456.26/15,826.56
  6. Step 6: Final answer
    x = 12,079.34

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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.