Home / 17,686.61-26,520.79-5,205.02

Finding the Fourth Proportional to 17,686.61, 26,520.79 and 5,205.02

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Solution

The fourth proportional to 17,686.61, 26,520.79 and 5,205.02 is: 7,804.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,686.61 : 26,520.79 = 5,205.02 : x
  2. Step 2: Convert to fraction form
    17,686.61/26,520.79 = 5,205.02/x
  3. Step 3: Cross multiply
    17,686.61x = 26,520.79 × 5,205.02
  4. Step 4: Simplify right side
    17,686.61x = 138,041,083.74
  5. Step 5: Solve for x
    x = 138,041,083.74/17,686.61
  6. Step 6: Final answer
    x = 7,804.84

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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.