Home / 15,469.96-21,326.16-10,155.64

Finding the Fourth Proportional to 15,469.96, 21,326.16 and 10,155.64

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Solution

The fourth proportional to 15,469.96, 21,326.16 and 10,155.64 is: 14,000.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,469.96 : 21,326.16 = 10,155.64 : x
  2. Step 2: Convert to fraction form
    15,469.96/21,326.16 = 10,155.64/x
  3. Step 3: Cross multiply
    15,469.96x = 21,326.16 × 10,155.64
  4. Step 4: Simplify right side
    15,469.96x = 216,580,803.54
  5. Step 5: Solve for x
    x = 216,580,803.54/15,469.96
  6. Step 6: Final answer
    x = 14,000.09

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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.