Home / 13,807.03-19,053.55-8,142.02

Finding the Fourth Proportional to 13,807.03, 19,053.55 and 8,142.02

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Solution

The fourth proportional to 13,807.03, 19,053.55 and 8,142.02 is: 11,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.03 : 19,053.55 = 8,142.02 : x
  2. Step 2: Convert to fraction form
    13,807.03/19,053.55 = 8,142.02/x
  3. Step 3: Cross multiply
    13,807.03x = 19,053.55 × 8,142.02
  4. Step 4: Simplify right side
    13,807.03x = 155,134,394.43
  5. Step 5: Solve for x
    x = 155,134,394.43/13,807.03
  6. Step 6: Final answer
    x = 11,235.90

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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.