Home / 13,113.72-19,671.06-5,322.36

Finding the Fourth Proportional to 13,113.72, 19,671.06 and 5,322.36

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Solution

The fourth proportional to 13,113.72, 19,671.06 and 5,322.36 is: 7,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.72 : 19,671.06 = 5,322.36 : x
  2. Step 2: Convert to fraction form
    13,113.72/19,671.06 = 5,322.36/x
  3. Step 3: Cross multiply
    13,113.72x = 19,671.06 × 5,322.36
  4. Step 4: Simplify right side
    13,113.72x = 104,696,462.90
  5. Step 5: Solve for x
    x = 104,696,462.90/13,113.72
  6. Step 6: Final answer
    x = 7,983.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.