Home / 11,987.52-17,984.79-6,148.20

Finding the Fourth Proportional to 11,987.52, 17,984.79 and 6,148.20

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Solution

The fourth proportional to 11,987.52, 17,984.79 and 6,148.20 is: 9,224.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.52 : 17,984.79 = 6,148.20 : x
  2. Step 2: Convert to fraction form
    11,987.52/17,984.79 = 6,148.20/x
  3. Step 3: Cross multiply
    11,987.52x = 17,984.79 × 6,148.20
  4. Step 4: Simplify right side
    11,987.52x = 110,574,085.88
  5. Step 5: Solve for x
    x = 110,574,085.88/11,987.52
  6. Step 6: Final answer
    x = 9,224.10

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1.5x scale

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.