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Finding the Fourth Proportional to 14,919.10, 22,381.65 and 4,389.10

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Solution

The fourth proportional to 14,919.10, 22,381.65 and 4,389.10 is: 6,584.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.10 : 22,381.65 = 4,389.10 : x
  2. Step 2: Convert to fraction form
    14,919.10/22,381.65 = 4,389.10/x
  3. Step 3: Cross multiply
    14,919.10x = 22,381.65 × 4,389.10
  4. Step 4: Simplify right side
    14,919.10x = 98,235,300.02
  5. Step 5: Solve for x
    x = 98,235,300.02/14,919.10
  6. Step 6: Final answer
    x = 6,584.53

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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.