Home / 14,222.55-21,336.84-5,457.45

Finding the Fourth Proportional to 14,222.55, 21,336.84 and 5,457.45

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Solution

The fourth proportional to 14,222.55, 21,336.84 and 5,457.45 is: 8,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,222.55 : 21,336.84 = 5,457.45 : x
  2. Step 2: Convert to fraction form
    14,222.55/21,336.84 = 5,457.45/x
  3. Step 3: Cross multiply
    14,222.55x = 21,336.84 × 5,457.45
  4. Step 4: Simplify right side
    14,222.55x = 116,444,737.46
  5. Step 5: Solve for x
    x = 116,444,737.46/14,222.55
  6. Step 6: Final answer
    x = 8,187.33

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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.