Home / 13,818.16-19,069.28-7,850

Finding the Fourth Proportional to 13,818.16, 19,069.28 and 7,850

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Solution

The fourth proportional to 13,818.16, 19,069.28 and 7,850 is: 10,833.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.16 : 19,069.28 = 7,850 : x
  2. Step 2: Convert to fraction form
    13,818.16/19,069.28 = 7,850/x
  3. Step 3: Cross multiply
    13,818.16x = 19,069.28 × 7,850
  4. Step 4: Simplify right side
    13,818.16x = 149,693,848
  5. Step 5: Solve for x
    x = 149,693,848/13,818.16
  6. Step 6: Final answer
    x = 10,833.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.