Home / 10,977.93-15,144.30-10,553.58

Finding the Fourth Proportional to 10,977.93, 15,144.30 and 10,553.58

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Solution

The fourth proportional to 10,977.93, 15,144.30 and 10,553.58 is: 14,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.93 : 15,144.30 = 10,553.58 : x
  2. Step 2: Convert to fraction form
    10,977.93/15,144.30 = 10,553.58/x
  3. Step 3: Cross multiply
    10,977.93x = 15,144.30 × 10,553.58
  4. Step 4: Simplify right side
    10,977.93x = 159,826,581.59
  5. Step 5: Solve for x
    x = 159,826,581.59/10,977.93
  6. Step 6: Final answer
    x = 14,558.90

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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.