Home / 10,178.51-15,261.88-3,156.66

Finding the Fourth Proportional to 10,178.51, 15,261.88 and 3,156.66

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Solution

The fourth proportional to 10,178.51, 15,261.88 and 3,156.66 is: 4,733.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.51 : 15,261.88 = 3,156.66 : x
  2. Step 2: Convert to fraction form
    10,178.51/15,261.88 = 3,156.66/x
  3. Step 3: Cross multiply
    10,178.51x = 15,261.88 × 3,156.66
  4. Step 4: Simplify right side
    10,178.51x = 48,176,566.12
  5. Step 5: Solve for x
    x = 48,176,566.12/10,178.51
  6. Step 6: Final answer
    x = 4,733.16

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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.