Home / 9,639.28-13,298.52-7,127.44

Finding the Fourth Proportional to 9,639.28, 13,298.52 and 7,127.44

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Solution

The fourth proportional to 9,639.28, 13,298.52 and 7,127.44 is: 9,833.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.28 : 13,298.52 = 7,127.44 : x
  2. Step 2: Convert to fraction form
    9,639.28/13,298.52 = 7,127.44/x
  3. Step 3: Cross multiply
    9,639.28x = 13,298.52 × 7,127.44
  4. Step 4: Simplify right side
    9,639.28x = 94,784,403.39
  5. Step 5: Solve for x
    x = 94,784,403.39/9,639.28
  6. Step 6: Final answer
    x = 9,833.14

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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.