Home / 7,877.37-10,869.54-5,047.29

Finding the Fourth Proportional to 7,877.37, 10,869.54 and 5,047.29

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Solution

The fourth proportional to 7,877.37, 10,869.54 and 5,047.29 is: 6,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.37 : 10,869.54 = 5,047.29 : x
  2. Step 2: Convert to fraction form
    7,877.37/10,869.54 = 5,047.29/x
  3. Step 3: Cross multiply
    7,877.37x = 10,869.54 × 5,047.29
  4. Step 4: Simplify right side
    7,877.37x = 54,861,720.55
  5. Step 5: Solve for x
    x = 54,861,720.55/7,877.37
  6. Step 6: Final answer
    x = 6,964.47

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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.