Home / 8,142.10-11,238.15-4,606.45

Finding the Fourth Proportional to 8,142.10, 11,238.15 and 4,606.45

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Solution

The fourth proportional to 8,142.10, 11,238.15 and 4,606.45 is: 6,358.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.10 : 11,238.15 = 4,606.45 : x
  2. Step 2: Convert to fraction form
    8,142.10/11,238.15 = 4,606.45/x
  3. Step 3: Cross multiply
    8,142.10x = 11,238.15 × 4,606.45
  4. Step 4: Simplify right side
    8,142.10x = 51,767,976.07
  5. Step 5: Solve for x
    x = 51,767,976.07/8,142.10
  6. Step 6: Final answer
    x = 6,358.06

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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.