Home / 11,589.51-17,235.16-11,220.45

Finding the Fourth Proportional to 11,589.51, 17,235.16 and 11,220.45

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Solution

The fourth proportional to 11,589.51, 17,235.16 and 11,220.45 is: 16,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,589.51 : 17,235.16 = 11,220.45 : x
  2. Step 2: Convert to fraction form
    11,589.51/17,235.16 = 11,220.45/x
  3. Step 3: Cross multiply
    11,589.51x = 17,235.16 × 11,220.45
  4. Step 4: Simplify right side
    11,589.51x = 193,386,251.02
  5. Step 5: Solve for x
    x = 193,386,251.02/11,589.51
  6. Step 6: Final answer
    x = 16,686.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.