Home / 14,088.66-21,143.70-5,212.39

Finding the Fourth Proportional to 14,088.66, 21,143.70 and 5,212.39

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Solution

The fourth proportional to 14,088.66, 21,143.70 and 5,212.39 is: 7,822.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,088.66 : 21,143.70 = 5,212.39 : x
  2. Step 2: Convert to fraction form
    14,088.66/21,143.70 = 5,212.39/x
  3. Step 3: Cross multiply
    14,088.66x = 21,143.70 × 5,212.39
  4. Step 4: Simplify right side
    14,088.66x = 110,209,210.44
  5. Step 5: Solve for x
    x = 110,209,210.44/14,088.66
  6. Step 6: Final answer
    x = 7,822.55

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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.