Home / 14,172.03-21,257.19-5,285.61

Finding the Fourth Proportional to 14,172.03, 21,257.19 and 5,285.61

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Solution

The fourth proportional to 14,172.03, 21,257.19 and 5,285.61 is: 7,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.03 : 21,257.19 = 5,285.61 : x
  2. Step 2: Convert to fraction form
    14,172.03/21,257.19 = 5,285.61/x
  3. Step 3: Cross multiply
    14,172.03x = 21,257.19 × 5,285.61
  4. Step 4: Simplify right side
    14,172.03x = 112,357,216.04
  5. Step 5: Solve for x
    x = 112,357,216.04/14,172.03
  6. Step 6: Final answer
    x = 7,928.10

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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.