Home / 12,689.38-19,036.10-4,367.35

Finding the Fourth Proportional to 12,689.38, 19,036.10 and 4,367.35

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Solution

The fourth proportional to 12,689.38, 19,036.10 and 4,367.35 is: 6,551.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689.38 : 19,036.10 = 4,367.35 : x
  2. Step 2: Convert to fraction form
    12,689.38/19,036.10 = 4,367.35/x
  3. Step 3: Cross multiply
    12,689.38x = 19,036.10 × 4,367.35
  4. Step 4: Simplify right side
    12,689.38x = 83,137,311.34
  5. Step 5: Solve for x
    x = 83,137,311.34/12,689.38
  6. Step 6: Final answer
    x = 6,551.72

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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.