Home / 12,085.52-18,127.54-7,186.33

Finding the Fourth Proportional to 12,085.52, 18,127.54 and 7,186.33

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Solution

The fourth proportional to 12,085.52, 18,127.54 and 7,186.33 is: 10,779.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.52 : 18,127.54 = 7,186.33 : x
  2. Step 2: Convert to fraction form
    12,085.52/18,127.54 = 7,186.33/x
  3. Step 3: Cross multiply
    12,085.52x = 18,127.54 × 7,186.33
  4. Step 4: Simplify right side
    12,085.52x = 130,270,484.53
  5. Step 5: Solve for x
    x = 130,270,484.53/12,085.52
  6. Step 6: Final answer
    x = 10,779.05

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.