Home / 13,482.09-20,117.66-12,081.16

Finding the Fourth Proportional to 13,482.09, 20,117.66 and 12,081.16

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Solution

The fourth proportional to 13,482.09, 20,117.66 and 12,081.16 is: 18,027.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.09 : 20,117.66 = 12,081.16 : x
  2. Step 2: Convert to fraction form
    13,482.09/20,117.66 = 12,081.16/x
  3. Step 3: Cross multiply
    13,482.09x = 20,117.66 × 12,081.16
  4. Step 4: Simplify right side
    13,482.09x = 243,044,618.99
  5. Step 5: Solve for x
    x = 243,044,618.99/13,482.09
  6. Step 6: Final answer
    x = 18,027.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.