Home / 15,644.84-21,617.86-12,526.76

Finding the Fourth Proportional to 15,644.84, 21,617.86 and 12,526.76

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Solution

The fourth proportional to 15,644.84, 21,617.86 and 12,526.76 is: 17,309.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,644.84 : 21,617.86 = 12,526.76 : x
  2. Step 2: Convert to fraction form
    15,644.84/21,617.86 = 12,526.76/x
  3. Step 3: Cross multiply
    15,644.84x = 21,617.86 × 12,526.76
  4. Step 4: Simplify right side
    15,644.84x = 270,801,743.93
  5. Step 5: Solve for x
    x = 270,801,743.93/15,644.84
  6. Step 6: Final answer
    x = 17,309.33

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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.