Home / 9,158.90-13,740.15-3,315.38

Finding the Fourth Proportional to 9,158.90, 13,740.15 and 3,315.38

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Solution

The fourth proportional to 9,158.90, 13,740.15 and 3,315.38 is: 4,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,158.90 : 13,740.15 = 3,315.38 : x
  2. Step 2: Convert to fraction form
    9,158.90/13,740.15 = 3,315.38/x
  3. Step 3: Cross multiply
    9,158.90x = 13,740.15 × 3,315.38
  4. Step 4: Simplify right side
    9,158.90x = 45,553,818.51
  5. Step 5: Solve for x
    x = 45,553,818.51/9,158.90
  6. Step 6: Final answer
    x = 4,973.72

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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.