Home / 10,143.66-15,208.53-4,878.45

Finding the Fourth Proportional to 10,143.66, 15,208.53 and 4,878.45

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Solution

The fourth proportional to 10,143.66, 15,208.53 and 4,878.45 is: 7,314.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.66 : 15,208.53 = 4,878.45 : x
  2. Step 2: Convert to fraction form
    10,143.66/15,208.53 = 4,878.45/x
  3. Step 3: Cross multiply
    10,143.66x = 15,208.53 × 4,878.45
  4. Step 4: Simplify right side
    10,143.66x = 74,194,053.18
  5. Step 5: Solve for x
    x = 74,194,053.18/10,143.66
  6. Step 6: Final answer
    x = 7,314.33

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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.