Home / 10,705.60-16,058.40-3,780.10

Finding the Fourth Proportional to 10,705.60, 16,058.40 and 3,780.10

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Solution

The fourth proportional to 10,705.60, 16,058.40 and 3,780.10 is: 5,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,705.60 : 16,058.40 = 3,780.10 : x
  2. Step 2: Convert to fraction form
    10,705.60/16,058.40 = 3,780.10/x
  3. Step 3: Cross multiply
    10,705.60x = 16,058.40 × 3,780.10
  4. Step 4: Simplify right side
    10,705.60x = 60,702,357.84
  5. Step 5: Solve for x
    x = 60,702,357.84/10,705.60
  6. Step 6: Final answer
    x = 5,670.15

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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.