Home / 10,620.03-15,920.10-3,595.13

Finding the Fourth Proportional to 10,620.03, 15,920.10 and 3,595.13

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Solution

The fourth proportional to 10,620.03, 15,920.10 and 3,595.13 is: 5,389.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.03 : 15,920.10 = 3,595.13 : x
  2. Step 2: Convert to fraction form
    10,620.03/15,920.10 = 3,595.13/x
  3. Step 3: Cross multiply
    10,620.03x = 15,920.10 × 3,595.13
  4. Step 4: Simplify right side
    10,620.03x = 57,234,809.21
  5. Step 5: Solve for x
    x = 57,234,809.21/10,620.03
  6. Step 6: Final answer
    x = 5,389.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.