Home / 13,644.20-18,827.65-7,675.74

Finding the Fourth Proportional to 13,644.20, 18,827.65 and 7,675.74

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Solution

The fourth proportional to 13,644.20, 18,827.65 and 7,675.74 is: 10,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.20 : 18,827.65 = 7,675.74 : x
  2. Step 2: Convert to fraction form
    13,644.20/18,827.65 = 7,675.74/x
  3. Step 3: Cross multiply
    13,644.20x = 18,827.65 × 7,675.74
  4. Step 4: Simplify right side
    13,644.20x = 144,516,113.65
  5. Step 5: Solve for x
    x = 144,516,113.65/13,644.20
  6. Step 6: Final answer
    x = 10,591.76

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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.