Home / 10,878.23-14,996.09-7,681.57

Finding the Fourth Proportional to 10,878.23, 14,996.09 and 7,681.57

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Solution

The fourth proportional to 10,878.23, 14,996.09 and 7,681.57 is: 10,589.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.23 : 14,996.09 = 7,681.57 : x
  2. Step 2: Convert to fraction form
    10,878.23/14,996.09 = 7,681.57/x
  3. Step 3: Cross multiply
    10,878.23x = 14,996.09 × 7,681.57
  4. Step 4: Simplify right side
    10,878.23x = 115,193,496.77
  5. Step 5: Solve for x
    x = 115,193,496.77/10,878.23
  6. Step 6: Final answer
    x = 10,589.36

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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.