Home / 13,482.24-18,590.87-9,178.11

Finding the Fourth Proportional to 13,482.24, 18,590.87 and 9,178.11

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Solution

The fourth proportional to 13,482.24, 18,590.87 and 9,178.11 is: 12,655.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.24 : 18,590.87 = 9,178.11 : x
  2. Step 2: Convert to fraction form
    13,482.24/18,590.87 = 9,178.11/x
  3. Step 3: Cross multiply
    13,482.24x = 18,590.87 × 9,178.11
  4. Step 4: Simplify right side
    13,482.24x = 170,629,072.80
  5. Step 5: Solve for x
    x = 170,629,072.80/13,482.24
  6. Step 6: Final answer
    x = 12,655.84

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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.