Home / 14,686.29-20,266.53-7,971.77

Finding the Fourth Proportional to 14,686.29, 20,266.53 and 7,971.77

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Solution

The fourth proportional to 14,686.29, 20,266.53 and 7,971.77 is: 11,000.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.29 : 20,266.53 = 7,971.77 : x
  2. Step 2: Convert to fraction form
    14,686.29/20,266.53 = 7,971.77/x
  3. Step 3: Cross multiply
    14,686.29x = 20,266.53 × 7,971.77
  4. Step 4: Simplify right side
    14,686.29x = 161,560,115.86
  5. Step 5: Solve for x
    x = 161,560,115.86/14,686.29
  6. Step 6: Final answer
    x = 11,000.74

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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.