Home / 11,885.85-16,397.32-7,167.51

Finding the Fourth Proportional to 11,885.85, 16,397.32 and 7,167.51

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Solution

The fourth proportional to 11,885.85, 16,397.32 and 7,167.51 is: 9,888.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.85 : 16,397.32 = 7,167.51 : x
  2. Step 2: Convert to fraction form
    11,885.85/16,397.32 = 7,167.51/x
  3. Step 3: Cross multiply
    11,885.85x = 16,397.32 × 7,167.51
  4. Step 4: Simplify right side
    11,885.85x = 117,527,955.07
  5. Step 5: Solve for x
    x = 117,527,955.07/11,885.85
  6. Step 6: Final answer
    x = 9,888.06

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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.