Home / 14,686.13-20,266.83-7,971.70

Finding the Fourth Proportional to 14,686.13, 20,266.83 and 7,971.70

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Solution

The fourth proportional to 14,686.13, 20,266.83 and 7,971.70 is: 11,000.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.13 : 20,266.83 = 7,971.70 : x
  2. Step 2: Convert to fraction form
    14,686.13/20,266.83 = 7,971.70/x
  3. Step 3: Cross multiply
    14,686.13x = 20,266.83 × 7,971.70
  4. Step 4: Simplify right side
    14,686.13x = 161,561,069.39
  5. Step 5: Solve for x
    x = 161,561,069.39/14,686.13
  6. Step 6: Final answer
    x = 11,000.93

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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.