Home / 13,122.66-19,679.95-3,760.17

Finding the Fourth Proportional to 13,122.66, 19,679.95 and 3,760.17

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Solution

The fourth proportional to 13,122.66, 19,679.95 and 3,760.17 is: 5,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.66 : 19,679.95 = 3,760.17 : x
  2. Step 2: Convert to fraction form
    13,122.66/19,679.95 = 3,760.17/x
  3. Step 3: Cross multiply
    13,122.66x = 19,679.95 × 3,760.17
  4. Step 4: Simplify right side
    13,122.66x = 73,999,966.99
  5. Step 5: Solve for x
    x = 73,999,966.99/13,122.66
  6. Step 6: Final answer
    x = 5,639.10

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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.