Home / 10,037.80-13,821.24-8,916.78

Finding the Fourth Proportional to 10,037.80, 13,821.24 and 8,916.78

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Solution

The fourth proportional to 10,037.80, 13,821.24 and 8,916.78 is: 12,277.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,037.80 : 13,821.24 = 8,916.78 : x
  2. Step 2: Convert to fraction form
    10,037.80/13,821.24 = 8,916.78/x
  3. Step 3: Cross multiply
    10,037.80x = 13,821.24 × 8,916.78
  4. Step 4: Simplify right side
    10,037.80x = 123,240,956.41
  5. Step 5: Solve for x
    x = 123,240,956.41/10,037.80
  6. Step 6: Final answer
    x = 12,277.69

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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.