Home / 10,155.46-15,232.02-2,759.80

Finding the Fourth Proportional to 10,155.46, 15,232.02 and 2,759.80

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Solution

The fourth proportional to 10,155.46, 15,232.02 and 2,759.80 is: 4,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.46 : 15,232.02 = 2,759.80 : x
  2. Step 2: Convert to fraction form
    10,155.46/15,232.02 = 2,759.80/x
  3. Step 3: Cross multiply
    10,155.46x = 15,232.02 × 2,759.80
  4. Step 4: Simplify right side
    10,155.46x = 42,037,328.80
  5. Step 5: Solve for x
    x = 42,037,328.80/10,155.46
  6. Step 6: Final answer
    x = 4,139.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.