Home / 10,976.51-15,147.79-6,498.63

Finding the Fourth Proportional to 10,976.51, 15,147.79 and 6,498.63

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Solution

The fourth proportional to 10,976.51, 15,147.79 and 6,498.63 is: 8,968.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,976.51 : 15,147.79 = 6,498.63 : x
  2. Step 2: Convert to fraction form
    10,976.51/15,147.79 = 6,498.63/x
  3. Step 3: Cross multiply
    10,976.51x = 15,147.79 × 6,498.63
  4. Step 4: Simplify right side
    10,976.51x = 98,439,866.28
  5. Step 5: Solve for x
    x = 98,439,866.28/10,976.51
  6. Step 6: Final answer
    x = 8,968.23

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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.