Home / 15,296.67-21,115.88-9,330.48

Finding the Fourth Proportional to 15,296.67, 21,115.88 and 9,330.48

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Solution

The fourth proportional to 15,296.67, 21,115.88 and 9,330.48 is: 12,880.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,296.67 : 21,115.88 = 9,330.48 : x
  2. Step 2: Convert to fraction form
    15,296.67/21,115.88 = 9,330.48/x
  3. Step 3: Cross multiply
    15,296.67x = 21,115.88 × 9,330.48
  4. Step 4: Simplify right side
    15,296.67x = 197,021,296.02
  5. Step 5: Solve for x
    x = 197,021,296.02/15,296.67
  6. Step 6: Final answer
    x = 12,880.01

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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.