Home / 6,901.28-10,320.40-5,147.52

Finding the Fourth Proportional to 6,901.28, 10,320.40 and 5,147.52

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Solution

The fourth proportional to 6,901.28, 10,320.40 and 5,147.52 is: 7,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,901.28 : 10,320.40 = 5,147.52 : x
  2. Step 2: Convert to fraction form
    6,901.28/10,320.40 = 5,147.52/x
  3. Step 3: Cross multiply
    6,901.28x = 10,320.40 × 5,147.52
  4. Step 4: Simplify right side
    6,901.28x = 53,124,465.41
  5. Step 5: Solve for x
    x = 53,124,465.41/6,901.28
  6. Step 6: Final answer
    x = 7,697.77

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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.