Home / 15,289.32-21,100.14-8,577.10

Finding the Fourth Proportional to 15,289.32, 21,100.14 and 8,577.10

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Solution

The fourth proportional to 15,289.32, 21,100.14 and 8,577.10 is: 11,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.32 : 21,100.14 = 8,577.10 : x
  2. Step 2: Convert to fraction form
    15,289.32/21,100.14 = 8,577.10/x
  3. Step 3: Cross multiply
    15,289.32x = 21,100.14 × 8,577.10
  4. Step 4: Simplify right side
    15,289.32x = 180,978,010.79
  5. Step 5: Solve for x
    x = 180,978,010.79/15,289.32
  6. Step 6: Final answer
    x = 11,836.89

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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.