Home / 15,809.22-21,814.20-9,095.13

Finding the Fourth Proportional to 15,809.22, 21,814.20 and 9,095.13

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Solution

The fourth proportional to 15,809.22, 21,814.20 and 9,095.13 is: 12,549.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,809.22 : 21,814.20 = 9,095.13 : x
  2. Step 2: Convert to fraction form
    15,809.22/21,814.20 = 9,095.13/x
  3. Step 3: Cross multiply
    15,809.22x = 21,814.20 × 9,095.13
  4. Step 4: Simplify right side
    15,809.22x = 198,402,984.85
  5. Step 5: Solve for x
    x = 198,402,984.85/15,809.22
  6. Step 6: Final answer
    x = 12,549.83

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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.