Home / 11,270.55-15,566.12-7,679.28

Finding the Fourth Proportional to 11,270.55, 15,566.12 and 7,679.28

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Solution

The fourth proportional to 11,270.55, 15,566.12 and 7,679.28 is: 10,606.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.55 : 15,566.12 = 7,679.28 : x
  2. Step 2: Convert to fraction form
    11,270.55/15,566.12 = 7,679.28/x
  3. Step 3: Cross multiply
    11,270.55x = 15,566.12 × 7,679.28
  4. Step 4: Simplify right side
    11,270.55x = 119,536,477.77
  5. Step 5: Solve for x
    x = 119,536,477.77/11,270.55
  6. Step 6: Final answer
    x = 10,606.10

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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.