Home / 13,695.96-18,900.53-8,030.86

Finding the Fourth Proportional to 13,695.96, 18,900.53 and 8,030.86

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Solution

The fourth proportional to 13,695.96, 18,900.53 and 8,030.86 is: 11,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.96 : 18,900.53 = 8,030.86 : x
  2. Step 2: Convert to fraction form
    13,695.96/18,900.53 = 8,030.86/x
  3. Step 3: Cross multiply
    13,695.96x = 18,900.53 × 8,030.86
  4. Step 4: Simplify right side
    13,695.96x = 151,787,510.36
  5. Step 5: Solve for x
    x = 151,787,510.36/13,695.96
  6. Step 6: Final answer
    x = 11,082.65

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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.