Home / 15,291.55-21,102.09-8,577.16

Finding the Fourth Proportional to 15,291.55, 21,102.09 and 8,577.16

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Solution

The fourth proportional to 15,291.55, 21,102.09 and 8,577.16 is: 11,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.55 : 21,102.09 = 8,577.16 : x
  2. Step 2: Convert to fraction form
    15,291.55/21,102.09 = 8,577.16/x
  3. Step 3: Cross multiply
    15,291.55x = 21,102.09 × 8,577.16
  4. Step 4: Simplify right side
    15,291.55x = 180,996,002.26
  5. Step 5: Solve for x
    x = 180,996,002.26/15,291.55
  6. Step 6: Final answer
    x = 11,836.34

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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.