Home / 15,638.12-21,582.41-8,924.71

Finding the Fourth Proportional to 15,638.12, 21,582.41 and 8,924.71

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Solution

The fourth proportional to 15,638.12, 21,582.41 and 8,924.71 is: 12,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.12 : 21,582.41 = 8,924.71 : x
  2. Step 2: Convert to fraction form
    15,638.12/21,582.41 = 8,924.71/x
  3. Step 3: Cross multiply
    15,638.12x = 21,582.41 × 8,924.71
  4. Step 4: Simplify right side
    15,638.12x = 192,616,750.35
  5. Step 5: Solve for x
    x = 192,616,750.35/15,638.12
  6. Step 6: Final answer
    x = 12,317.13

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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.