Home / 11,159.19-15,398.37-6,621.17

Finding the Fourth Proportional to 11,159.19, 15,398.37 and 6,621.17

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Solution

The fourth proportional to 11,159.19, 15,398.37 and 6,621.17 is: 9,136.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.19 : 15,398.37 = 6,621.17 : x
  2. Step 2: Convert to fraction form
    11,159.19/15,398.37 = 6,621.17/x
  3. Step 3: Cross multiply
    11,159.19x = 15,398.37 × 6,621.17
  4. Step 4: Simplify right side
    11,159.19x = 101,955,148.50
  5. Step 5: Solve for x
    x = 101,955,148.50/11,159.19
  6. Step 6: Final answer
    x = 9,136.43

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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.