Home / 11,478.93-15,837.15-7,001.07

Finding the Fourth Proportional to 11,478.93, 15,837.15 and 7,001.07

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Solution

The fourth proportional to 11,478.93, 15,837.15 and 7,001.07 is: 9,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.93 : 15,837.15 = 7,001.07 : x
  2. Step 2: Convert to fraction form
    11,478.93/15,837.15 = 7,001.07/x
  3. Step 3: Cross multiply
    11,478.93x = 15,837.15 × 7,001.07
  4. Step 4: Simplify right side
    11,478.93x = 110,876,995.75
  5. Step 5: Solve for x
    x = 110,876,995.75/11,478.93
  6. Step 6: Final answer
    x = 9,659.18

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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.