Home / 15,579.26-21,498.76-8,505.74

Finding the Fourth Proportional to 15,579.26, 21,498.76 and 8,505.74

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Solution

The fourth proportional to 15,579.26, 21,498.76 and 8,505.74 is: 11,737.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.26 : 21,498.76 = 8,505.74 : x
  2. Step 2: Convert to fraction form
    15,579.26/21,498.76 = 8,505.74/x
  3. Step 3: Cross multiply
    15,579.26x = 21,498.76 × 8,505.74
  4. Step 4: Simplify right side
    15,579.26x = 182,862,862.88
  5. Step 5: Solve for x
    x = 182,862,862.88/15,579.26
  6. Step 6: Final answer
    x = 11,737.58

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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.