Home / 18,555.72-25,607.10-10,172.28

Finding the Fourth Proportional to 18,555.72, 25,607.10 and 10,172.28

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Solution

The fourth proportional to 18,555.72, 25,607.10 and 10,172.28 is: 14,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.72 : 25,607.10 = 10,172.28 : x
  2. Step 2: Convert to fraction form
    18,555.72/25,607.10 = 10,172.28/x
  3. Step 3: Cross multiply
    18,555.72x = 25,607.10 × 10,172.28
  4. Step 4: Simplify right side
    18,555.72x = 260,482,591.19
  5. Step 5: Solve for x
    x = 260,482,591.19/18,555.72
  6. Step 6: Final answer
    x = 14,037.86

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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.