Home / 10,390.38-15,559.65-6,482.94

Finding the Fourth Proportional to 10,390.38, 15,559.65 and 6,482.94

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Solution

The fourth proportional to 10,390.38, 15,559.65 and 6,482.94 is: 9,708.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.38 : 15,559.65 = 6,482.94 : x
  2. Step 2: Convert to fraction form
    10,390.38/15,559.65 = 6,482.94/x
  3. Step 3: Cross multiply
    10,390.38x = 15,559.65 × 6,482.94
  4. Step 4: Simplify right side
    10,390.38x = 100,872,277.37
  5. Step 5: Solve for x
    x = 100,872,277.37/10,390.38
  6. Step 6: Final answer
    x = 9,708.24

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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.