Home / 18,981.04-26,184.96-12,268.80

Finding the Fourth Proportional to 18,981.04, 26,184.96 and 12,268.80

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Solution

The fourth proportional to 18,981.04, 26,184.96 and 12,268.80 is: 16,925.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.04 : 26,184.96 = 12,268.80 : x
  2. Step 2: Convert to fraction form
    18,981.04/26,184.96 = 12,268.80/x
  3. Step 3: Cross multiply
    18,981.04x = 26,184.96 × 12,268.80
  4. Step 4: Simplify right side
    18,981.04x = 321,258,037.25
  5. Step 5: Solve for x
    x = 321,258,037.25/18,981.04
  6. Step 6: Final answer
    x = 16,925.21

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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.