Home / 15,507.93-21,400.50-8,794.18

Finding the Fourth Proportional to 15,507.93, 21,400.50 and 8,794.18

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Solution

The fourth proportional to 15,507.93, 21,400.50 and 8,794.18 is: 12,135.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.93 : 21,400.50 = 8,794.18 : x
  2. Step 2: Convert to fraction form
    15,507.93/21,400.50 = 8,794.18/x
  3. Step 3: Cross multiply
    15,507.93x = 21,400.50 × 8,794.18
  4. Step 4: Simplify right side
    15,507.93x = 188,199,849.09
  5. Step 5: Solve for x
    x = 188,199,849.09/15,507.93
  6. Step 6: Final answer
    x = 12,135.72

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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.