Home / 10,886.25-15,021.96-6,411.10

Finding the Fourth Proportional to 10,886.25, 15,021.96 and 6,411.10

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Solution

The fourth proportional to 10,886.25, 15,021.96 and 6,411.10 is: 8,846.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.25 : 15,021.96 = 6,411.10 : x
  2. Step 2: Convert to fraction form
    10,886.25/15,021.96 = 6,411.10/x
  3. Step 3: Cross multiply
    10,886.25x = 15,021.96 × 6,411.10
  4. Step 4: Simplify right side
    10,886.25x = 96,307,254.33
  5. Step 5: Solve for x
    x = 96,307,254.33/10,886.25
  6. Step 6: Final answer
    x = 8,846.69

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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.