Home / 12,318.90-17,000.85-7,014.18

Finding the Fourth Proportional to 12,318.90, 17,000.85 and 7,014.18

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Solution

The fourth proportional to 12,318.90, 17,000.85 and 7,014.18 is: 9,680.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.90 : 17,000.85 = 7,014.18 : x
  2. Step 2: Convert to fraction form
    12,318.90/17,000.85 = 7,014.18/x
  3. Step 3: Cross multiply
    12,318.90x = 17,000.85 × 7,014.18
  4. Step 4: Simplify right side
    12,318.90x = 119,247,022.05
  5. Step 5: Solve for x
    x = 119,247,022.05/12,318.90
  6. Step 6: Final answer
    x = 9,680.01

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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.