Home / 7,311.23-10,077.64-5,715.06

Finding the Fourth Proportional to 7,311.23, 10,077.64 and 5,715.06

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Solution

The fourth proportional to 7,311.23, 10,077.64 and 5,715.06 is: 7,877.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.23 : 10,077.64 = 5,715.06 : x
  2. Step 2: Convert to fraction form
    7,311.23/10,077.64 = 5,715.06/x
  3. Step 3: Cross multiply
    7,311.23x = 10,077.64 × 5,715.06
  4. Step 4: Simplify right side
    7,311.23x = 57,594,317.26
  5. Step 5: Solve for x
    x = 57,594,317.26/7,311.23
  6. Step 6: Final answer
    x = 7,877.51

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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.