Home / 10,079.68-13,905.12-7,837.60

Finding the Fourth Proportional to 10,079.68, 13,905.12 and 7,837.60

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Solution

The fourth proportional to 10,079.68, 13,905.12 and 7,837.60 is: 10,812.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.68 : 13,905.12 = 7,837.60 : x
  2. Step 2: Convert to fraction form
    10,079.68/13,905.12 = 7,837.60/x
  3. Step 3: Cross multiply
    10,079.68x = 13,905.12 × 7,837.60
  4. Step 4: Simplify right side
    10,079.68x = 108,982,768.51
  5. Step 5: Solve for x
    x = 108,982,768.51/10,079.68
  6. Step 6: Final answer
    x = 10,812.13

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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.