Home / 10,815.29-14,927.81-6,102.31

Finding the Fourth Proportional to 10,815.29, 14,927.81 and 6,102.31

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Solution

The fourth proportional to 10,815.29, 14,927.81 and 6,102.31 is: 8,422.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.29 : 14,927.81 = 6,102.31 : x
  2. Step 2: Convert to fraction form
    10,815.29/14,927.81 = 6,102.31/x
  3. Step 3: Cross multiply
    10,815.29x = 14,927.81 × 6,102.31
  4. Step 4: Simplify right side
    10,815.29x = 91,094,019.09
  5. Step 5: Solve for x
    x = 91,094,019.09/10,815.29
  6. Step 6: Final answer
    x = 8,422.71

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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.