Home / 10,470.18-15,705.26-2,678.38

Finding the Fourth Proportional to 10,470.18, 15,705.26 and 2,678.38

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Solution

The fourth proportional to 10,470.18, 15,705.26 and 2,678.38 is: 4,017.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470.18 : 15,705.26 = 2,678.38 : x
  2. Step 2: Convert to fraction form
    10,470.18/15,705.26 = 2,678.38/x
  3. Step 3: Cross multiply
    10,470.18x = 15,705.26 × 2,678.38
  4. Step 4: Simplify right side
    10,470.18x = 42,064,654.28
  5. Step 5: Solve for x
    x = 42,064,654.28/10,470.18
  6. Step 6: Final answer
    x = 4,017.57

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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.