Home / 10,205.65-15,308.54-2,810.89

Finding the Fourth Proportional to 10,205.65, 15,308.54 and 2,810.89

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Solution

The fourth proportional to 10,205.65, 15,308.54 and 2,810.89 is: 4,216.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.65 : 15,308.54 = 2,810.89 : x
  2. Step 2: Convert to fraction form
    10,205.65/15,308.54 = 2,810.89/x
  3. Step 3: Cross multiply
    10,205.65x = 15,308.54 × 2,810.89
  4. Step 4: Simplify right side
    10,205.65x = 43,030,622.00
  5. Step 5: Solve for x
    x = 43,030,622.00/10,205.65
  6. Step 6: Final answer
    x = 4,216.35

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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.