Home / 13,320.70-18,371.28-8,014.53

Finding the Fourth Proportional to 13,320.70, 18,371.28 and 8,014.53

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Solution

The fourth proportional to 13,320.70, 18,371.28 and 8,014.53 is: 11,053.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.70 : 18,371.28 = 8,014.53 : x
  2. Step 2: Convert to fraction form
    13,320.70/18,371.28 = 8,014.53/x
  3. Step 3: Cross multiply
    13,320.70x = 18,371.28 × 8,014.53
  4. Step 4: Simplify right side
    13,320.70x = 147,237,082.84
  5. Step 5: Solve for x
    x = 147,237,082.84/13,320.70
  6. Step 6: Final answer
    x = 11,053.25

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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.