Home / 14,938.72-20,615.31-8,224.46

Finding the Fourth Proportional to 14,938.72, 20,615.31 and 8,224.46

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Solution

The fourth proportional to 14,938.72, 20,615.31 and 8,224.46 is: 11,349.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,938.72 : 20,615.31 = 8,224.46 : x
  2. Step 2: Convert to fraction form
    14,938.72/20,615.31 = 8,224.46/x
  3. Step 3: Cross multiply
    14,938.72x = 20,615.31 × 8,224.46
  4. Step 4: Simplify right side
    14,938.72x = 169,549,689.41
  5. Step 5: Solve for x
    x = 169,549,689.41/14,938.72
  6. Step 6: Final answer
    x = 11,349.68

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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.