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Finding the Fourth Proportional to 14,210.17, 21,320.70 and 5,445.70

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Solution

The fourth proportional to 14,210.17, 21,320.70 and 5,445.70 is: 8,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.17 : 21,320.70 = 5,445.70 : x
  2. Step 2: Convert to fraction form
    14,210.17/21,320.70 = 5,445.70/x
  3. Step 3: Cross multiply
    14,210.17x = 21,320.70 × 5,445.70
  4. Step 4: Simplify right side
    14,210.17x = 116,106,135.99
  5. Step 5: Solve for x
    x = 116,106,135.99/14,210.17
  6. Step 6: Final answer
    x = 8,170.64

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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.