Home / 18,440.24-27,643.74-12,519.12

Finding the Fourth Proportional to 18,440.24, 27,643.74 and 12,519.12

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Solution

The fourth proportional to 18,440.24, 27,643.74 and 12,519.12 is: 18,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440.24 : 27,643.74 = 12,519.12 : x
  2. Step 2: Convert to fraction form
    18,440.24/27,643.74 = 12,519.12/x
  3. Step 3: Cross multiply
    18,440.24x = 27,643.74 × 12,519.12
  4. Step 4: Simplify right side
    18,440.24x = 346,075,298.31
  5. Step 5: Solve for x
    x = 346,075,298.31/18,440.24
  6. Step 6: Final answer
    x = 18,767.40

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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.