Home / 13,020.86-19,532.31-4,256.66

Finding the Fourth Proportional to 13,020.86, 19,532.31 and 4,256.66

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Solution

The fourth proportional to 13,020.86, 19,532.31 and 4,256.66 is: 6,385.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.86 : 19,532.31 = 4,256.66 : x
  2. Step 2: Convert to fraction form
    13,020.86/19,532.31 = 4,256.66/x
  3. Step 3: Cross multiply
    13,020.86x = 19,532.31 × 4,256.66
  4. Step 4: Simplify right side
    13,020.86x = 83,142,402.68
  5. Step 5: Solve for x
    x = 83,142,402.68/13,020.86
  6. Step 6: Final answer
    x = 6,385.32

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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.