Home / 10,538.49-15,807.54-3,142.98

Finding the Fourth Proportional to 10,538.49, 15,807.54 and 3,142.98

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Solution

The fourth proportional to 10,538.49, 15,807.54 and 3,142.98 is: 4,714.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.49 : 15,807.54 = 3,142.98 : x
  2. Step 2: Convert to fraction form
    10,538.49/15,807.54 = 3,142.98/x
  3. Step 3: Cross multiply
    10,538.49x = 15,807.54 × 3,142.98
  4. Step 4: Simplify right side
    10,538.49x = 49,682,782.07
  5. Step 5: Solve for x
    x = 49,682,782.07/10,538.49
  6. Step 6: Final answer
    x = 4,714.41

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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.