Home / 14,645.24-20,219.76-9,618.36

Finding the Fourth Proportional to 14,645.24, 20,219.76 and 9,618.36

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Solution

The fourth proportional to 14,645.24, 20,219.76 and 9,618.36 is: 13,279.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.24 : 20,219.76 = 9,618.36 : x
  2. Step 2: Convert to fraction form
    14,645.24/20,219.76 = 9,618.36/x
  3. Step 3: Cross multiply
    14,645.24x = 20,219.76 × 9,618.36
  4. Step 4: Simplify right side
    14,645.24x = 194,480,930.79
  5. Step 5: Solve for x
    x = 194,480,930.79/14,645.24
  6. Step 6: Final answer
    x = 13,279.46

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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.