Home / 7,840.68-10,823.70-5,011.92

Finding the Fourth Proportional to 7,840.68, 10,823.70 and 5,011.92

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Solution

The fourth proportional to 7,840.68, 10,823.70 and 5,011.92 is: 6,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.68 : 10,823.70 = 5,011.92 : x
  2. Step 2: Convert to fraction form
    7,840.68/10,823.70 = 5,011.92/x
  3. Step 3: Cross multiply
    7,840.68x = 10,823.70 × 5,011.92
  4. Step 4: Simplify right side
    7,840.68x = 54,247,518.50
  5. Step 5: Solve for x
    x = 54,247,518.50/7,840.68
  6. Step 6: Final answer
    x = 6,918.73

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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.