Home / 10,889.62-15,027.84-8,159.32

Finding the Fourth Proportional to 10,889.62, 15,027.84 and 8,159.32

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Solution

The fourth proportional to 10,889.62, 15,027.84 and 8,159.32 is: 11,259.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.62 : 15,027.84 = 8,159.32 : x
  2. Step 2: Convert to fraction form
    10,889.62/15,027.84 = 8,159.32/x
  3. Step 3: Cross multiply
    10,889.62x = 15,027.84 × 8,159.32
  4. Step 4: Simplify right side
    10,889.62x = 122,616,955.47
  5. Step 5: Solve for x
    x = 122,616,955.47/10,889.62
  6. Step 6: Final answer
    x = 11,259.98

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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.