Home / 10,210.83-15,317.13-2,815.31

Finding the Fourth Proportional to 10,210.83, 15,317.13 and 2,815.31

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Solution

The fourth proportional to 10,210.83, 15,317.13 and 2,815.31 is: 4,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,210.83 : 15,317.13 = 2,815.31 : x
  2. Step 2: Convert to fraction form
    10,210.83/15,317.13 = 2,815.31/x
  3. Step 3: Cross multiply
    10,210.83x = 15,317.13 × 2,815.31
  4. Step 4: Simplify right side
    10,210.83x = 43,122,392.67
  5. Step 5: Solve for x
    x = 43,122,392.67/10,210.83
  6. Step 6: Final answer
    x = 4,223.20

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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.