Home / 15,327.54-21,148.11-9,357.03

Finding the Fourth Proportional to 15,327.54, 21,148.11 and 9,357.03

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Solution

The fourth proportional to 15,327.54, 21,148.11 and 9,357.03 is: 12,910.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.54 : 21,148.11 = 9,357.03 : x
  2. Step 2: Convert to fraction form
    15,327.54/21,148.11 = 9,357.03/x
  3. Step 3: Cross multiply
    15,327.54x = 21,148.11 × 9,357.03
  4. Step 4: Simplify right side
    15,327.54x = 197,883,499.71
  5. Step 5: Solve for x
    x = 197,883,499.71/15,327.54
  6. Step 6: Final answer
    x = 12,910.32

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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.