Home / 14,184.78-21,282.69-5,417.70

Finding the Fourth Proportional to 14,184.78, 21,282.69 and 5,417.70

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Solution

The fourth proportional to 14,184.78, 21,282.69 and 5,417.70 is: 8,128.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,184.78 : 21,282.69 = 5,417.70 : x
  2. Step 2: Convert to fraction form
    14,184.78/21,282.69 = 5,417.70/x
  3. Step 3: Cross multiply
    14,184.78x = 21,282.69 × 5,417.70
  4. Step 4: Simplify right side
    14,184.78x = 115,303,229.61
  5. Step 5: Solve for x
    x = 115,303,229.61/14,184.78
  6. Step 6: Final answer
    x = 8,128.66

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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.