Home / 15,526.35-21,426.39-8,452.80

Finding the Fourth Proportional to 15,526.35, 21,426.39 and 8,452.80

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Solution

The fourth proportional to 15,526.35, 21,426.39 and 8,452.80 is: 11,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.35 : 21,426.39 = 8,452.80 : x
  2. Step 2: Convert to fraction form
    15,526.35/21,426.39 = 8,452.80/x
  3. Step 3: Cross multiply
    15,526.35x = 21,426.39 × 8,452.80
  4. Step 4: Simplify right side
    15,526.35x = 181,112,989.39
  5. Step 5: Solve for x
    x = 181,112,989.39/15,526.35
  6. Step 6: Final answer
    x = 11,664.88

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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.