Home / 15,656.15-21,605.42-8,582.58

Finding the Fourth Proportional to 15,656.15, 21,605.42 and 8,582.58

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Solution

The fourth proportional to 15,656.15, 21,605.42 and 8,582.58 is: 11,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.15 : 21,605.42 = 8,582.58 : x
  2. Step 2: Convert to fraction form
    15,656.15/21,605.42 = 8,582.58/x
  3. Step 3: Cross multiply
    15,656.15x = 21,605.42 × 8,582.58
  4. Step 4: Simplify right side
    15,656.15x = 185,430,267.04
  5. Step 5: Solve for x
    x = 185,430,267.04/15,656.15
  6. Step 6: Final answer
    x = 11,843.92

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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.