Home / 18,899.36-26,075.71-12,188.84

Finding the Fourth Proportional to 18,899.36, 26,075.71 and 12,188.84

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Solution

The fourth proportional to 18,899.36, 26,075.71 and 12,188.84 is: 16,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899.36 : 26,075.71 = 12,188.84 : x
  2. Step 2: Convert to fraction form
    18,899.36/26,075.71 = 12,188.84/x
  3. Step 3: Cross multiply
    18,899.36x = 26,075.71 × 12,188.84
  4. Step 4: Simplify right side
    18,899.36x = 317,832,657.08
  5. Step 5: Solve for x
    x = 317,832,657.08/18,899.36
  6. Step 6: Final answer
    x = 16,817.11

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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.