Home / 14,938.90-20,615.51-8,224.39

Finding the Fourth Proportional to 14,938.90, 20,615.51 and 8,224.39

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Solution

The fourth proportional to 14,938.90, 20,615.51 and 8,224.39 is: 11,349.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,938.90 : 20,615.51 = 8,224.39 : x
  2. Step 2: Convert to fraction form
    14,938.90/20,615.51 = 8,224.39/x
  3. Step 3: Cross multiply
    14,938.90x = 20,615.51 × 8,224.39
  4. Step 4: Simplify right side
    14,938.90x = 169,549,924.66
  5. Step 5: Solve for x
    x = 169,549,924.66/14,938.90
  6. Step 6: Final answer
    x = 11,349.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.