Home / 15,536.13-21,440.10-8,821.93

Finding the Fourth Proportional to 15,536.13, 21,440.10 and 8,821.93

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Solution

The fourth proportional to 15,536.13, 21,440.10 and 8,821.93 is: 12,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,536.13 : 21,440.10 = 8,821.93 : x
  2. Step 2: Convert to fraction form
    15,536.13/21,440.10 = 8,821.93/x
  3. Step 3: Cross multiply
    15,536.13x = 21,440.10 × 8,821.93
  4. Step 4: Simplify right side
    15,536.13x = 189,143,061.39
  5. Step 5: Solve for x
    x = 189,143,061.39/15,536.13
  6. Step 6: Final answer
    x = 12,174.40

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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.