Home / 15,508.77-21,402.32-9,536.91

Finding the Fourth Proportional to 15,508.77, 21,402.32 and 9,536.91

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Solution

The fourth proportional to 15,508.77, 21,402.32 and 9,536.91 is: 13,161.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.77 : 21,402.32 = 9,536.91 : x
  2. Step 2: Convert to fraction form
    15,508.77/21,402.32 = 9,536.91/x
  3. Step 3: Cross multiply
    15,508.77x = 21,402.32 × 9,536.91
  4. Step 4: Simplify right side
    15,508.77x = 204,111,999.63
  5. Step 5: Solve for x
    x = 204,111,999.63/15,508.77
  6. Step 6: Final answer
    x = 13,161.07

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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.