Home / 7,011.45-10,518.26-3,315.69

Finding the Fourth Proportional to 7,011.45, 10,518.26 and 3,315.69

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Solution

The fourth proportional to 7,011.45, 10,518.26 and 3,315.69 is: 4,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.45 : 10,518.26 = 3,315.69 : x
  2. Step 2: Convert to fraction form
    7,011.45/10,518.26 = 3,315.69/x
  3. Step 3: Cross multiply
    7,011.45x = 10,518.26 × 3,315.69
  4. Step 4: Simplify right side
    7,011.45x = 34,875,272.92
  5. Step 5: Solve for x
    x = 34,875,272.92/7,011.45
  6. Step 6: Final answer
    x = 4,974.05

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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.