Home / 10,854.73-14,979.40-6,378.99

Finding the Fourth Proportional to 10,854.73, 14,979.40 and 6,378.99

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Solution

The fourth proportional to 10,854.73, 14,979.40 and 6,378.99 is: 8,802.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,854.73 : 14,979.40 = 6,378.99 : x
  2. Step 2: Convert to fraction form
    10,854.73/14,979.40 = 6,378.99/x
  3. Step 3: Cross multiply
    10,854.73x = 14,979.40 × 6,378.99
  4. Step 4: Simplify right side
    10,854.73x = 95,553,442.81
  5. Step 5: Solve for x
    x = 95,553,442.81/10,854.73
  6. Step 6: Final answer
    x = 8,802.93

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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.