Home / 13,569.83-20,447.18-11,158.67

Finding the Fourth Proportional to 13,569.83, 20,447.18 and 11,158.67

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Solution

The fourth proportional to 13,569.83, 20,447.18 and 11,158.67 is: 16,814.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.83 : 20,447.18 = 11,158.67 : x
  2. Step 2: Convert to fraction form
    13,569.83/20,447.18 = 11,158.67/x
  3. Step 3: Cross multiply
    13,569.83x = 20,447.18 × 11,158.67
  4. Step 4: Simplify right side
    13,569.83x = 228,163,231.81
  5. Step 5: Solve for x
    x = 228,163,231.81/13,569.83
  6. Step 6: Final answer
    x = 16,814.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.