Home / 15,582.65-21,498.99-9,209.43

Finding the Fourth Proportional to 15,582.65, 21,498.99 and 9,209.43

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Solution

The fourth proportional to 15,582.65, 21,498.99 and 9,209.43 is: 12,706.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582.65 : 21,498.99 = 9,209.43 : x
  2. Step 2: Convert to fraction form
    15,582.65/21,498.99 = 9,209.43/x
  3. Step 3: Cross multiply
    15,582.65x = 21,498.99 × 9,209.43
  4. Step 4: Simplify right side
    15,582.65x = 197,993,443.48
  5. Step 5: Solve for x
    x = 197,993,443.48/15,582.65
  6. Step 6: Final answer
    x = 12,706.02

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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.