Home / 10,142.53-13,987.96-6,604.45

Finding the Fourth Proportional to 10,142.53, 13,987.96 and 6,604.45

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Solution

The fourth proportional to 10,142.53, 13,987.96 and 6,604.45 is: 9,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.53 : 13,987.96 = 6,604.45 : x
  2. Step 2: Convert to fraction form
    10,142.53/13,987.96 = 6,604.45/x
  3. Step 3: Cross multiply
    10,142.53x = 13,987.96 × 6,604.45
  4. Step 4: Simplify right side
    10,142.53x = 92,382,782.42
  5. Step 5: Solve for x
    x = 92,382,782.42/10,142.53
  6. Step 6: Final answer
    x = 9,108.46

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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.