Home / 6,689.36-10,030.37-5,311.54

Finding the Fourth Proportional to 6,689.36, 10,030.37 and 5,311.54

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Solution

The fourth proportional to 6,689.36, 10,030.37 and 5,311.54 is: 7,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.36 : 10,030.37 = 5,311.54 : x
  2. Step 2: Convert to fraction form
    6,689.36/10,030.37 = 5,311.54/x
  3. Step 3: Cross multiply
    6,689.36x = 10,030.37 × 5,311.54
  4. Step 4: Simplify right side
    6,689.36x = 53,276,711.47
  5. Step 5: Solve for x
    x = 53,276,711.47/6,689.36
  6. Step 6: Final answer
    x = 7,964.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.