Home / 13,719.27-18,933.30-7,752.86

Finding the Fourth Proportional to 13,719.27, 18,933.30 and 7,752.86

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Solution

The fourth proportional to 13,719.27, 18,933.30 and 7,752.86 is: 10,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.27 : 18,933.30 = 7,752.86 : x
  2. Step 2: Convert to fraction form
    13,719.27/18,933.30 = 7,752.86/x
  3. Step 3: Cross multiply
    13,719.27x = 18,933.30 × 7,752.86
  4. Step 4: Simplify right side
    13,719.27x = 146,787,224.24
  5. Step 5: Solve for x
    x = 146,787,224.24/13,719.27
  6. Step 6: Final answer
    x = 10,699.35

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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.