Home / 10,260.83-15,385.09-4,985.45

Finding the Fourth Proportional to 10,260.83, 15,385.09 and 4,985.45

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Solution

The fourth proportional to 10,260.83, 15,385.09 and 4,985.45 is: 7,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,260.83 : 15,385.09 = 4,985.45 : x
  2. Step 2: Convert to fraction form
    10,260.83/15,385.09 = 4,985.45/x
  3. Step 3: Cross multiply
    10,260.83x = 15,385.09 × 4,985.45
  4. Step 4: Simplify right side
    10,260.83x = 76,701,572.01
  5. Step 5: Solve for x
    x = 76,701,572.01/10,260.83
  6. Step 6: Final answer
    x = 7,475.18

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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.