Home / 15,891.08-21,929.13-10,226.07

Finding the Fourth Proportional to 15,891.08, 21,929.13 and 10,226.07

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Solution

The fourth proportional to 15,891.08, 21,929.13 and 10,226.07 is: 14,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,891.08 : 21,929.13 = 10,226.07 : x
  2. Step 2: Convert to fraction form
    15,891.08/21,929.13 = 10,226.07/x
  3. Step 3: Cross multiply
    15,891.08x = 21,929.13 × 10,226.07
  4. Step 4: Simplify right side
    15,891.08x = 224,248,818.42
  5. Step 5: Solve for x
    x = 224,248,818.42/15,891.08
  6. Step 6: Final answer
    x = 14,111.62

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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.