Home / 14,729.72-20,334.36-9,697.20

Finding the Fourth Proportional to 14,729.72, 20,334.36 and 9,697.20

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Solution

The fourth proportional to 14,729.72, 20,334.36 and 9,697.20 is: 13,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,729.72 : 20,334.36 = 9,697.20 : x
  2. Step 2: Convert to fraction form
    14,729.72/20,334.36 = 9,697.20/x
  3. Step 3: Cross multiply
    14,729.72x = 20,334.36 × 9,697.20
  4. Step 4: Simplify right side
    14,729.72x = 197,186,355.79
  5. Step 5: Solve for x
    x = 197,186,355.79/14,729.72
  6. Step 6: Final answer
    x = 13,386.97

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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.