Home / 15,656.28-21,605.58-8,582.46

Finding the Fourth Proportional to 15,656.28, 21,605.58 and 8,582.46

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Solution

The fourth proportional to 15,656.28, 21,605.58 and 8,582.46 is: 11,843.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.28 : 21,605.58 = 8,582.46 : x
  2. Step 2: Convert to fraction form
    15,656.28/21,605.58 = 8,582.46/x
  3. Step 3: Cross multiply
    15,656.28x = 21,605.58 × 8,582.46
  4. Step 4: Simplify right side
    15,656.28x = 185,429,026.13
  5. Step 5: Solve for x
    x = 185,429,026.13/15,656.28
  6. Step 6: Final answer
    x = 11,843.75

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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.