Home / 13,477.19-20,218.85-4,118.53

Finding the Fourth Proportional to 13,477.19, 20,218.85 and 4,118.53

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Solution

The fourth proportional to 13,477.19, 20,218.85 and 4,118.53 is: 6,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.19 : 20,218.85 = 4,118.53 : x
  2. Step 2: Convert to fraction form
    13,477.19/20,218.85 = 4,118.53/x
  3. Step 3: Cross multiply
    13,477.19x = 20,218.85 × 4,118.53
  4. Step 4: Simplify right side
    13,477.19x = 83,272,025.18
  5. Step 5: Solve for x
    x = 83,272,025.18/13,477.19
  6. Step 6: Final answer
    x = 6,178.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.