Home / 13,871.25-19,150.80-9,030.57

Finding the Fourth Proportional to 13,871.25, 19,150.80 and 9,030.57

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Solution

The fourth proportional to 13,871.25, 19,150.80 and 9,030.57 is: 12,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.25 : 19,150.80 = 9,030.57 : x
  2. Step 2: Convert to fraction form
    13,871.25/19,150.80 = 9,030.57/x
  3. Step 3: Cross multiply
    13,871.25x = 19,150.80 × 9,030.57
  4. Step 4: Simplify right side
    13,871.25x = 172,942,639.96
  5. Step 5: Solve for x
    x = 172,942,639.96/13,871.25
  6. Step 6: Final answer
    x = 12,467.70

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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.