Home / 18,881.19-28,315.58-6,398.01

Finding the Fourth Proportional to 18,881.19, 28,315.58 and 6,398.01

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Solution

The fourth proportional to 18,881.19, 28,315.58 and 6,398.01 is: 9,594.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.19 : 28,315.58 = 6,398.01 : x
  2. Step 2: Convert to fraction form
    18,881.19/28,315.58 = 6,398.01/x
  3. Step 3: Cross multiply
    18,881.19x = 28,315.58 × 6,398.01
  4. Step 4: Simplify right side
    18,881.19x = 181,163,332.01
  5. Step 5: Solve for x
    x = 181,163,332.01/18,881.19
  6. Step 6: Final answer
    x = 9,594.91

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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.