Home / 14,302.77-21,456.20-5,415.71

Finding the Fourth Proportional to 14,302.77, 21,456.20 and 5,415.71

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Solution

The fourth proportional to 14,302.77, 21,456.20 and 5,415.71 is: 8,124.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,302.77 : 21,456.20 = 5,415.71 : x
  2. Step 2: Convert to fraction form
    14,302.77/21,456.20 = 5,415.71/x
  3. Step 3: Cross multiply
    14,302.77x = 21,456.20 × 5,415.71
  4. Step 4: Simplify right side
    14,302.77x = 116,200,463.16
  5. Step 5: Solve for x
    x = 116,200,463.16/14,302.77
  6. Step 6: Final answer
    x = 8,124.33

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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.