Home / 15,538.57-21,444.43-8,826.30

Finding the Fourth Proportional to 15,538.57, 21,444.43 and 8,826.30

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Solution

The fourth proportional to 15,538.57, 21,444.43 and 8,826.30 is: 12,180.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.57 : 21,444.43 = 8,826.30 : x
  2. Step 2: Convert to fraction form
    15,538.57/21,444.43 = 8,826.30/x
  3. Step 3: Cross multiply
    15,538.57x = 21,444.43 × 8,826.30
  4. Step 4: Simplify right side
    15,538.57x = 189,274,972.51
  5. Step 5: Solve for x
    x = 189,274,972.51/15,538.57
  6. Step 6: Final answer
    x = 12,180.98

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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.