Home / 14,154.32-21,231.66-5,389.71

Finding the Fourth Proportional to 14,154.32, 21,231.66 and 5,389.71

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Solution

The fourth proportional to 14,154.32, 21,231.66 and 5,389.71 is: 8,084.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.32 : 21,231.66 = 5,389.71 : x
  2. Step 2: Convert to fraction form
    14,154.32/21,231.66 = 5,389.71/x
  3. Step 3: Cross multiply
    14,154.32x = 21,231.66 × 5,389.71
  4. Step 4: Simplify right side
    14,154.32x = 114,432,490.22
  5. Step 5: Solve for x
    x = 114,432,490.22/14,154.32
  6. Step 6: Final answer
    x = 8,084.64

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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.