Home / 14,222.93-21,337.36-5,457.78

Finding the Fourth Proportional to 14,222.93, 21,337.36 and 5,457.78

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Solution

The fourth proportional to 14,222.93, 21,337.36 and 5,457.78 is: 8,187.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,222.93 : 21,337.36 = 5,457.78 : x
  2. Step 2: Convert to fraction form
    14,222.93/21,337.36 = 5,457.78/x
  3. Step 3: Cross multiply
    14,222.93x = 21,337.36 × 5,457.78
  4. Step 4: Simplify right side
    14,222.93x = 116,454,603.02
  5. Step 5: Solve for x
    x = 116,454,603.02/14,222.93
  6. Step 6: Final answer
    x = 8,187.81

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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.