Home / 15,581.77-21,502.92-8,508.19

Finding the Fourth Proportional to 15,581.77, 21,502.92 and 8,508.19

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Solution

The fourth proportional to 15,581.77, 21,502.92 and 8,508.19 is: 11,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.77 : 21,502.92 = 8,508.19 : x
  2. Step 2: Convert to fraction form
    15,581.77/21,502.92 = 8,508.19/x
  3. Step 3: Cross multiply
    15,581.77x = 21,502.92 × 8,508.19
  4. Step 4: Simplify right side
    15,581.77x = 182,950,899.52
  5. Step 5: Solve for x
    x = 182,950,899.52/15,581.77
  6. Step 6: Final answer
    x = 11,741.34

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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.