Home / 11,498.88-15,864.36-6,782.16

Finding the Fourth Proportional to 11,498.88, 15,864.36 and 6,782.16

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Solution

The fourth proportional to 11,498.88, 15,864.36 and 6,782.16 is: 9,356.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,498.88 : 15,864.36 = 6,782.16 : x
  2. Step 2: Convert to fraction form
    11,498.88/15,864.36 = 6,782.16/x
  3. Step 3: Cross multiply
    11,498.88x = 15,864.36 × 6,782.16
  4. Step 4: Simplify right side
    11,498.88x = 107,594,627.82
  5. Step 5: Solve for x
    x = 107,594,627.82/11,498.88
  6. Step 6: Final answer
    x = 9,356.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.