Home / 14,719.77-20,320.81-11,355.03

Finding the Fourth Proportional to 14,719.77, 20,320.81 and 11,355.03

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Solution

The fourth proportional to 14,719.77, 20,320.81 and 11,355.03 is: 15,675.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,719.77 : 20,320.81 = 11,355.03 : x
  2. Step 2: Convert to fraction form
    14,719.77/20,320.81 = 11,355.03/x
  3. Step 3: Cross multiply
    14,719.77x = 20,320.81 × 11,355.03
  4. Step 4: Simplify right side
    14,719.77x = 230,743,378.79
  5. Step 5: Solve for x
    x = 230,743,378.79/14,719.77
  6. Step 6: Final answer
    x = 15,675.75

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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.