Home / 10,656.90-15,986.55-3,261.30

Finding the Fourth Proportional to 10,656.90, 15,986.55 and 3,261.30

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Solution

The fourth proportional to 10,656.90, 15,986.55 and 3,261.30 is: 4,892.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.90 : 15,986.55 = 3,261.30 : x
  2. Step 2: Convert to fraction form
    10,656.90/15,986.55 = 3,261.30/x
  3. Step 3: Cross multiply
    10,656.90x = 15,986.55 × 3,261.30
  4. Step 4: Simplify right side
    10,656.90x = 52,136,935.52
  5. Step 5: Solve for x
    x = 52,136,935.52/10,656.90
  6. Step 6: Final answer
    x = 4,892.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.