Home / 15,580.62-21,501.25-8,507.04

Finding the Fourth Proportional to 15,580.62, 21,501.25 and 8,507.04

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Solution

The fourth proportional to 15,580.62, 21,501.25 and 8,507.04 is: 11,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580.62 : 21,501.25 = 8,507.04 : x
  2. Step 2: Convert to fraction form
    15,580.62/21,501.25 = 8,507.04/x
  3. Step 3: Cross multiply
    15,580.62x = 21,501.25 × 8,507.04
  4. Step 4: Simplify right side
    15,580.62x = 182,911,993.80
  5. Step 5: Solve for x
    x = 182,911,993.80/15,580.62
  6. Step 6: Final answer
    x = 11,739.71

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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.