Home / 10,860.82-14,988.54-6,386.02

Finding the Fourth Proportional to 10,860.82, 14,988.54 and 6,386.02

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Solution

The fourth proportional to 10,860.82, 14,988.54 and 6,386.02 is: 8,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.82 : 14,988.54 = 6,386.02 : x
  2. Step 2: Convert to fraction form
    10,860.82/14,988.54 = 6,386.02/x
  3. Step 3: Cross multiply
    10,860.82x = 14,988.54 × 6,386.02
  4. Step 4: Simplify right side
    10,860.82x = 95,717,116.21
  5. Step 5: Solve for x
    x = 95,717,116.21/10,860.82
  6. Step 6: Final answer
    x = 8,813.07

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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.