Home / 10,908.21-15,054.90-7,893.12

Finding the Fourth Proportional to 10,908.21, 15,054.90 and 7,893.12

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Solution

The fourth proportional to 10,908.21, 15,054.90 and 7,893.12 is: 10,893.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.21 : 15,054.90 = 7,893.12 : x
  2. Step 2: Convert to fraction form
    10,908.21/15,054.90 = 7,893.12/x
  3. Step 3: Cross multiply
    10,908.21x = 15,054.90 × 7,893.12
  4. Step 4: Simplify right side
    10,908.21x = 118,830,132.29
  5. Step 5: Solve for x
    x = 118,830,132.29/10,908.21
  6. Step 6: Final answer
    x = 10,893.64

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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.