Home / 10,858.84-14,983.48-6,386.40

Finding the Fourth Proportional to 10,858.84, 14,983.48 and 6,386.40

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Solution

The fourth proportional to 10,858.84, 14,983.48 and 6,386.40 is: 8,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.84 : 14,983.48 = 6,386.40 : x
  2. Step 2: Convert to fraction form
    10,858.84/14,983.48 = 6,386.40/x
  3. Step 3: Cross multiply
    10,858.84x = 14,983.48 × 6,386.40
  4. Step 4: Simplify right side
    10,858.84x = 95,690,496.67
  5. Step 5: Solve for x
    x = 95,690,496.67/10,858.84
  6. Step 6: Final answer
    x = 8,812.22

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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.