Home / 13,154.36-18,152.55-7,846.43

Finding the Fourth Proportional to 13,154.36, 18,152.55 and 7,846.43

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Solution

The fourth proportional to 13,154.36, 18,152.55 and 7,846.43 is: 10,827.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.36 : 18,152.55 = 7,846.43 : x
  2. Step 2: Convert to fraction form
    13,154.36/18,152.55 = 7,846.43/x
  3. Step 3: Cross multiply
    13,154.36x = 18,152.55 × 7,846.43
  4. Step 4: Simplify right side
    13,154.36x = 142,432,622.13
  5. Step 5: Solve for x
    x = 142,432,622.13/13,154.36
  6. Step 6: Final answer
    x = 10,827.79

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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.