Home / 19,165.04-26,439.72-12,453.20

Finding the Fourth Proportional to 19,165.04, 26,439.72 and 12,453.20

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Solution

The fourth proportional to 19,165.04, 26,439.72 and 12,453.20 is: 17,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.04 : 26,439.72 = 12,453.20 : x
  2. Step 2: Convert to fraction form
    19,165.04/26,439.72 = 12,453.20/x
  3. Step 3: Cross multiply
    19,165.04x = 26,439.72 × 12,453.20
  4. Step 4: Simplify right side
    19,165.04x = 329,259,121.10
  5. Step 5: Solve for x
    x = 329,259,121.10/19,165.04
  6. Step 6: Final answer
    x = 17,180.19

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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.