Home / 14,159.78-21,239.84-6,152.69

Finding the Fourth Proportional to 14,159.78, 21,239.84 and 6,152.69

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Solution

The fourth proportional to 14,159.78, 21,239.84 and 6,152.69 is: 9,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.78 : 21,239.84 = 6,152.69 : x
  2. Step 2: Convert to fraction form
    14,159.78/21,239.84 = 6,152.69/x
  3. Step 3: Cross multiply
    14,159.78x = 21,239.84 × 6,152.69
  4. Step 4: Simplify right side
    14,159.78x = 130,682,219.65
  5. Step 5: Solve for x
    x = 130,682,219.65/14,159.78
  6. Step 6: Final answer
    x = 9,229.11

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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.