Home / 15,580.32-21,501.36-8,507.44

Finding the Fourth Proportional to 15,580.32, 21,501.36 and 8,507.44

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Solution

The fourth proportional to 15,580.32, 21,501.36 and 8,507.44 is: 11,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580.32 : 21,501.36 = 8,507.44 : x
  2. Step 2: Convert to fraction form
    15,580.32/21,501.36 = 8,507.44/x
  3. Step 3: Cross multiply
    15,580.32x = 21,501.36 × 8,507.44
  4. Step 4: Simplify right side
    15,580.32x = 182,921,530.12
  5. Step 5: Solve for x
    x = 182,921,530.12/15,580.32
  6. Step 6: Final answer
    x = 11,740.55

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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.