Home / 10,405.45-15,587.54-4,851.15

Finding the Fourth Proportional to 10,405.45, 15,587.54 and 4,851.15

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Solution

The fourth proportional to 10,405.45, 15,587.54 and 4,851.15 is: 7,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.45 : 15,587.54 = 4,851.15 : x
  2. Step 2: Convert to fraction form
    10,405.45/15,587.54 = 4,851.15/x
  3. Step 3: Cross multiply
    10,405.45x = 15,587.54 × 4,851.15
  4. Step 4: Simplify right side
    10,405.45x = 75,617,494.67
  5. Step 5: Solve for x
    x = 75,617,494.67/10,405.45
  6. Step 6: Final answer
    x = 7,267.10

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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.