Home / 12,242.18-18,368.47-6,689.04

Finding the Fourth Proportional to 12,242.18, 18,368.47 and 6,689.04

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Solution

The fourth proportional to 12,242.18, 18,368.47 and 6,689.04 is: 10,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.18 : 18,368.47 = 6,689.04 : x
  2. Step 2: Convert to fraction form
    12,242.18/18,368.47 = 6,689.04/x
  3. Step 3: Cross multiply
    12,242.18x = 18,368.47 × 6,689.04
  4. Step 4: Simplify right side
    12,242.18x = 122,867,432.24
  5. Step 5: Solve for x
    x = 122,867,432.24/12,242.18
  6. Step 6: Final answer
    x = 10,036.40

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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.