Home / 15,320.60-21,144.41-8,606.23

Finding the Fourth Proportional to 15,320.60, 21,144.41 and 8,606.23

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Solution

The fourth proportional to 15,320.60, 21,144.41 and 8,606.23 is: 11,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,320.60 : 21,144.41 = 8,606.23 : x
  2. Step 2: Convert to fraction form
    15,320.60/21,144.41 = 8,606.23/x
  3. Step 3: Cross multiply
    15,320.60x = 21,144.41 × 8,606.23
  4. Step 4: Simplify right side
    15,320.60x = 181,973,655.67
  5. Step 5: Solve for x
    x = 181,973,655.67/15,320.60
  6. Step 6: Final answer
    x = 11,877.71

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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.