Home / 15,581.48-21,503.22-8,508.20

Finding the Fourth Proportional to 15,581.48, 21,503.22 and 8,508.20

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Solution

The fourth proportional to 15,581.48, 21,503.22 and 8,508.20 is: 11,741.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.48 : 21,503.22 = 8,508.20 : x
  2. Step 2: Convert to fraction form
    15,581.48/21,503.22 = 8,508.20/x
  3. Step 3: Cross multiply
    15,581.48x = 21,503.22 × 8,508.20
  4. Step 4: Simplify right side
    15,581.48x = 182,953,696.40
  5. Step 5: Solve for x
    x = 182,953,696.40/15,581.48
  6. Step 6: Final answer
    x = 11,741.74

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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.