Home / 7,178.04-10,767.87-1,913.27

Finding the Fourth Proportional to 7,178.04, 10,767.87 and 1,913.27

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Solution

The fourth proportional to 7,178.04, 10,767.87 and 1,913.27 is: 2,870.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.04 : 10,767.87 = 1,913.27 : x
  2. Step 2: Convert to fraction form
    7,178.04/10,767.87 = 1,913.27/x
  3. Step 3: Cross multiply
    7,178.04x = 10,767.87 × 1,913.27
  4. Step 4: Simplify right side
    7,178.04x = 20,601,788.80
  5. Step 5: Solve for x
    x = 20,601,788.80/7,178.04
  6. Step 6: Final answer
    x = 2,870.11

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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.