Home / 8,749.54-13,127.58-5,242.02

Finding the Fourth Proportional to 8,749.54, 13,127.58 and 5,242.02

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Solution

The fourth proportional to 8,749.54, 13,127.58 and 5,242.02 is: 7,864.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.54 : 13,127.58 = 5,242.02 : x
  2. Step 2: Convert to fraction form
    8,749.54/13,127.58 = 5,242.02/x
  3. Step 3: Cross multiply
    8,749.54x = 13,127.58 × 5,242.02
  4. Step 4: Simplify right side
    8,749.54x = 68,815,036.91
  5. Step 5: Solve for x
    x = 68,815,036.91/8,749.54
  6. Step 6: Final answer
    x = 7,864.99

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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.