Home / 13,134.15-18,128.06-8,353.17

Finding the Fourth Proportional to 13,134.15, 18,128.06 and 8,353.17

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Solution

The fourth proportional to 13,134.15, 18,128.06 and 8,353.17 is: 11,529.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.15 : 18,128.06 = 8,353.17 : x
  2. Step 2: Convert to fraction form
    13,134.15/18,128.06 = 8,353.17/x
  3. Step 3: Cross multiply
    13,134.15x = 18,128.06 × 8,353.17
  4. Step 4: Simplify right side
    13,134.15x = 151,426,725.18
  5. Step 5: Solve for x
    x = 151,426,725.18/13,134.15
  6. Step 6: Final answer
    x = 11,529.24

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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.