Home / 15,878.36-23,818.66-4,785.14

Finding the Fourth Proportional to 15,878.36, 23,818.66 and 4,785.14

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Solution

The fourth proportional to 15,878.36, 23,818.66 and 4,785.14 is: 7,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.36 : 23,818.66 = 4,785.14 : x
  2. Step 2: Convert to fraction form
    15,878.36/23,818.66 = 4,785.14/x
  3. Step 3: Cross multiply
    15,878.36x = 23,818.66 × 4,785.14
  4. Step 4: Simplify right side
    15,878.36x = 113,975,670.30
  5. Step 5: Solve for x
    x = 113,975,670.30/15,878.36
  6. Step 6: Final answer
    x = 7,178.05

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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.