Home / 16,921.40-23,348.58-9,749.72

Finding the Fourth Proportional to 16,921.40, 23,348.58 and 9,749.72

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Solution

The fourth proportional to 16,921.40, 23,348.58 and 9,749.72 is: 13,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.40 : 23,348.58 = 9,749.72 : x
  2. Step 2: Convert to fraction form
    16,921.40/23,348.58 = 9,749.72/x
  3. Step 3: Cross multiply
    16,921.40x = 23,348.58 × 9,749.72
  4. Step 4: Simplify right side
    16,921.40x = 227,642,117.40
  5. Step 5: Solve for x
    x = 227,642,117.40/16,921.40
  6. Step 6: Final answer
    x = 13,452.91

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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.