Home / 9,116.19-12,582.44-7,621.51

Finding the Fourth Proportional to 9,116.19, 12,582.44 and 7,621.51

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Solution

The fourth proportional to 9,116.19, 12,582.44 and 7,621.51 is: 10,519.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,116.19 : 12,582.44 = 7,621.51 : x
  2. Step 2: Convert to fraction form
    9,116.19/12,582.44 = 7,621.51/x
  3. Step 3: Cross multiply
    9,116.19x = 12,582.44 × 7,621.51
  4. Step 4: Simplify right side
    9,116.19x = 95,897,154.18
  5. Step 5: Solve for x
    x = 95,897,154.18/9,116.19
  6. Step 6: Final answer
    x = 10,519.43

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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.