Home / 14,280.78-21,424.86-8,362.65

Finding the Fourth Proportional to 14,280.78, 21,424.86 and 8,362.65

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Solution

The fourth proportional to 14,280.78, 21,424.86 and 8,362.65 is: 12,546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.78 : 21,424.86 = 8,362.65 : x
  2. Step 2: Convert to fraction form
    14,280.78/21,424.86 = 8,362.65/x
  3. Step 3: Cross multiply
    14,280.78x = 21,424.86 × 8,362.65
  4. Step 4: Simplify right side
    14,280.78x = 179,168,605.48
  5. Step 5: Solve for x
    x = 179,168,605.48/14,280.78
  6. Step 6: Final answer
    x = 12,546.14

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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.