Home / 14,389.86-21,572.10-5,618.64

Finding the Fourth Proportional to 14,389.86, 21,572.10 and 5,618.64

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Solution

The fourth proportional to 14,389.86, 21,572.10 and 5,618.64 is: 8,423.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.86 : 21,572.10 = 5,618.64 : x
  2. Step 2: Convert to fraction form
    14,389.86/21,572.10 = 5,618.64/x
  3. Step 3: Cross multiply
    14,389.86x = 21,572.10 × 5,618.64
  4. Step 4: Simplify right side
    14,389.86x = 121,205,863.94
  5. Step 5: Solve for x
    x = 121,205,863.94/14,389.86
  6. Step 6: Final answer
    x = 8,423.01

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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.