Home / 13,871.32-19,142.68-7,583.56

Finding the Fourth Proportional to 13,871.32, 19,142.68 and 7,583.56

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Solution

The fourth proportional to 13,871.32, 19,142.68 and 7,583.56 is: 10,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.32 : 19,142.68 = 7,583.56 : x
  2. Step 2: Convert to fraction form
    13,871.32/19,142.68 = 7,583.56/x
  3. Step 3: Cross multiply
    13,871.32x = 19,142.68 × 7,583.56
  4. Step 4: Simplify right side
    13,871.32x = 145,169,662.34
  5. Step 5: Solve for x
    x = 145,169,662.34/13,871.32
  6. Step 6: Final answer
    x = 10,465.45

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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.