Home / 13,102.59-18,081.60-7,133.91

Finding the Fourth Proportional to 13,102.59, 18,081.60 and 7,133.91

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Solution

The fourth proportional to 13,102.59, 18,081.60 and 7,133.91 is: 9,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.59 : 18,081.60 = 7,133.91 : x
  2. Step 2: Convert to fraction form
    13,102.59/18,081.60 = 7,133.91/x
  3. Step 3: Cross multiply
    13,102.59x = 18,081.60 × 7,133.91
  4. Step 4: Simplify right side
    13,102.59x = 128,992,412.50
  5. Step 5: Solve for x
    x = 128,992,412.50/13,102.59
  6. Step 6: Final answer
    x = 9,844.80

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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.