Home / 18,315.01-27,474.14-9,991.45

Finding the Fourth Proportional to 18,315.01, 27,474.14 and 9,991.45

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Solution

The fourth proportional to 18,315.01, 27,474.14 and 9,991.45 is: 14,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.01 : 27,474.14 = 9,991.45 : x
  2. Step 2: Convert to fraction form
    18,315.01/27,474.14 = 9,991.45/x
  3. Step 3: Cross multiply
    18,315.01x = 27,474.14 × 9,991.45
  4. Step 4: Simplify right side
    18,315.01x = 274,506,496.10
  5. Step 5: Solve for x
    x = 274,506,496.10/18,315.01
  6. Step 6: Final answer
    x = 14,988.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.