Home / 7,776.21-10,722.69-5,253.95

Finding the Fourth Proportional to 7,776.21, 10,722.69 and 5,253.95

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Solution

The fourth proportional to 7,776.21, 10,722.69 and 5,253.95 is: 7,244.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.21 : 10,722.69 = 5,253.95 : x
  2. Step 2: Convert to fraction form
    7,776.21/10,722.69 = 5,253.95/x
  3. Step 3: Cross multiply
    7,776.21x = 10,722.69 × 5,253.95
  4. Step 4: Simplify right side
    7,776.21x = 56,336,477.13
  5. Step 5: Solve for x
    x = 56,336,477.13/7,776.21
  6. Step 6: Final answer
    x = 7,244.72

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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.