Home / 7,719.50-10,655.52-4,811.33

Finding the Fourth Proportional to 7,719.50, 10,655.52 and 4,811.33

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Solution

The fourth proportional to 7,719.50, 10,655.52 and 4,811.33 is: 6,641.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.50 : 10,655.52 = 4,811.33 : x
  2. Step 2: Convert to fraction form
    7,719.50/10,655.52 = 4,811.33/x
  3. Step 3: Cross multiply
    7,719.50x = 10,655.52 × 4,811.33
  4. Step 4: Simplify right side
    7,719.50x = 51,267,223.04
  5. Step 5: Solve for x
    x = 51,267,223.04/7,719.50
  6. Step 6: Final answer
    x = 6,641.26

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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.