Home / 17,990.74-26,985.15-5,510.77

Finding the Fourth Proportional to 17,990.74, 26,985.15 and 5,510.77

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Solution

The fourth proportional to 17,990.74, 26,985.15 and 5,510.77 is: 8,265.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.74 : 26,985.15 = 5,510.77 : x
  2. Step 2: Convert to fraction form
    17,990.74/26,985.15 = 5,510.77/x
  3. Step 3: Cross multiply
    17,990.74x = 26,985.15 × 5,510.77
  4. Step 4: Simplify right side
    17,990.74x = 148,708,955.07
  5. Step 5: Solve for x
    x = 148,708,955.07/17,990.74
  6. Step 6: Final answer
    x = 8,265.86

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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.