Home / 7,827.94-10,803.06-5,140.75

Finding the Fourth Proportional to 7,827.94, 10,803.06 and 5,140.75

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Solution

The fourth proportional to 7,827.94, 10,803.06 and 5,140.75 is: 7,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.94 : 10,803.06 = 5,140.75 : x
  2. Step 2: Convert to fraction form
    7,827.94/10,803.06 = 5,140.75/x
  3. Step 3: Cross multiply
    7,827.94x = 10,803.06 × 5,140.75
  4. Step 4: Simplify right side
    7,827.94x = 55,535,830.70
  5. Step 5: Solve for x
    x = 55,535,830.70/7,827.94
  6. Step 6: Final answer
    x = 7,094.57

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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.