Home / 13,871.19-19,142.40-7,583.56

Finding the Fourth Proportional to 13,871.19, 19,142.40 and 7,583.56

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Solution

The fourth proportional to 13,871.19, 19,142.40 and 7,583.56 is: 10,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.19 : 19,142.40 = 7,583.56 : x
  2. Step 2: Convert to fraction form
    13,871.19/19,142.40 = 7,583.56/x
  3. Step 3: Cross multiply
    13,871.19x = 19,142.40 × 7,583.56
  4. Step 4: Simplify right side
    13,871.19x = 145,167,538.94
  5. Step 5: Solve for x
    x = 145,167,538.94/13,871.19
  6. Step 6: Final answer
    x = 10,465.40

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1.5x scale

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.