Home / 13,871.28-19,142.16-7,583.52

Finding the Fourth Proportional to 13,871.28, 19,142.16 and 7,583.52

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Solution

The fourth proportional to 13,871.28, 19,142.16 and 7,583.52 is: 10,465.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.28 : 19,142.16 = 7,583.52 : x
  2. Step 2: Convert to fraction form
    13,871.28/19,142.16 = 7,583.52/x
  3. Step 3: Cross multiply
    13,871.28x = 19,142.16 × 7,583.52
  4. Step 4: Simplify right side
    13,871.28x = 145,164,953.20
  5. Step 5: Solve for x
    x = 145,164,953.20/13,871.28
  6. Step 6: Final answer
    x = 10,465.14

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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.