Home / 10,893.06-15,030.10-6,415.18

Finding the Fourth Proportional to 10,893.06, 15,030.10 and 6,415.18

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Solution

The fourth proportional to 10,893.06, 15,030.10 and 6,415.18 is: 8,851.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,893.06 : 15,030.10 = 6,415.18 : x
  2. Step 2: Convert to fraction form
    10,893.06/15,030.10 = 6,415.18/x
  3. Step 3: Cross multiply
    10,893.06x = 15,030.10 × 6,415.18
  4. Step 4: Simplify right side
    10,893.06x = 96,420,796.92
  5. Step 5: Solve for x
    x = 96,420,796.92/10,893.06
  6. Step 6: Final answer
    x = 8,851.58

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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.