Home / 14,091.80-21,137.70-9,426.20

Finding the Fourth Proportional to 14,091.80, 21,137.70 and 9,426.20

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Solution

The fourth proportional to 14,091.80, 21,137.70 and 9,426.20 is: 14,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.80 : 21,137.70 = 9,426.20 : x
  2. Step 2: Convert to fraction form
    14,091.80/21,137.70 = 9,426.20/x
  3. Step 3: Cross multiply
    14,091.80x = 21,137.70 × 9,426.20
  4. Step 4: Simplify right side
    14,091.80x = 199,248,187.74
  5. Step 5: Solve for x
    x = 199,248,187.74/14,091.80
  6. Step 6: Final answer
    x = 14,139.30

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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.