Home / 15,250.41-21,045.96-8,535.78

Finding the Fourth Proportional to 15,250.41, 21,045.96 and 8,535.78

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Solution

The fourth proportional to 15,250.41, 21,045.96 and 8,535.78 is: 11,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,250.41 : 21,045.96 = 8,535.78 : x
  2. Step 2: Convert to fraction form
    15,250.41/21,045.96 = 8,535.78/x
  3. Step 3: Cross multiply
    15,250.41x = 21,045.96 × 8,535.78
  4. Step 4: Simplify right side
    15,250.41x = 179,643,684.45
  5. Step 5: Solve for x
    x = 179,643,684.45/15,250.41
  6. Step 6: Final answer
    x = 11,779.60

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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.