Home / 7,008.04-10,515.12-3,720.34

Finding the Fourth Proportional to 7,008.04, 10,515.12 and 3,720.34

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Solution

The fourth proportional to 7,008.04, 10,515.12 and 3,720.34 is: 5,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.04 : 10,515.12 = 3,720.34 : x
  2. Step 2: Convert to fraction form
    7,008.04/10,515.12 = 3,720.34/x
  3. Step 3: Cross multiply
    7,008.04x = 10,515.12 × 3,720.34
  4. Step 4: Simplify right side
    7,008.04x = 39,119,821.54
  5. Step 5: Solve for x
    x = 39,119,821.54/7,008.04
  6. Step 6: Final answer
    x = 5,582.13

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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.