Home / 13,154.60-18,153.24-7,186.28

Finding the Fourth Proportional to 13,154.60, 18,153.24 and 7,186.28

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Solution

The fourth proportional to 13,154.60, 18,153.24 and 7,186.28 is: 9,917.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.60 : 18,153.24 = 7,186.28 : x
  2. Step 2: Convert to fraction form
    13,154.60/18,153.24 = 7,186.28/x
  3. Step 3: Cross multiply
    13,154.60x = 18,153.24 × 7,186.28
  4. Step 4: Simplify right side
    13,154.60x = 130,454,265.55
  5. Step 5: Solve for x
    x = 130,454,265.55/13,154.60
  6. Step 6: Final answer
    x = 9,917.01

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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.