Home / 10,886.94-15,021.99-6,411.42

Finding the Fourth Proportional to 10,886.94, 15,021.99 and 6,411.42

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Solution

The fourth proportional to 10,886.94, 15,021.99 and 6,411.42 is: 8,846.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.94 : 15,021.99 = 6,411.42 : x
  2. Step 2: Convert to fraction form
    10,886.94/15,021.99 = 6,411.42/x
  3. Step 3: Cross multiply
    10,886.94x = 15,021.99 × 6,411.42
  4. Step 4: Simplify right side
    10,886.94x = 96,312,287.13
  5. Step 5: Solve for x
    x = 96,312,287.13/10,886.94
  6. Step 6: Final answer
    x = 8,846.59

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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.