Home / 18,933.11-26,127.80-10,980.06

Finding the Fourth Proportional to 18,933.11, 26,127.80 and 10,980.06

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Solution

The fourth proportional to 18,933.11, 26,127.80 and 10,980.06 is: 15,152.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.11 : 26,127.80 = 10,980.06 : x
  2. Step 2: Convert to fraction form
    18,933.11/26,127.80 = 10,980.06/x
  3. Step 3: Cross multiply
    18,933.11x = 26,127.80 × 10,980.06
  4. Step 4: Simplify right side
    18,933.11x = 286,884,811.67
  5. Step 5: Solve for x
    x = 286,884,811.67/18,933.11
  6. Step 6: Final answer
    x = 15,152.55

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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.