Home / 12,850.18-19,281.65-8,681.04

Finding the Fourth Proportional to 12,850.18, 19,281.65 and 8,681.04

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Solution

The fourth proportional to 12,850.18, 19,281.65 and 8,681.04 is: 13,025.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,850.18 : 19,281.65 = 8,681.04 : x
  2. Step 2: Convert to fraction form
    12,850.18/19,281.65 = 8,681.04/x
  3. Step 3: Cross multiply
    12,850.18x = 19,281.65 × 8,681.04
  4. Step 4: Simplify right side
    12,850.18x = 167,384,731.51
  5. Step 5: Solve for x
    x = 167,384,731.51/12,850.18
  6. Step 6: Final answer
    x = 13,025.87

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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.