Home / 9,931.64-13,705.27-5,455.17

Finding the Fourth Proportional to 9,931.64, 13,705.27 and 5,455.17

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Solution

The fourth proportional to 9,931.64, 13,705.27 and 5,455.17 is: 7,527.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.64 : 13,705.27 = 5,455.17 : x
  2. Step 2: Convert to fraction form
    9,931.64/13,705.27 = 5,455.17/x
  3. Step 3: Cross multiply
    9,931.64x = 13,705.27 × 5,455.17
  4. Step 4: Simplify right side
    9,931.64x = 74,764,564.11
  5. Step 5: Solve for x
    x = 74,764,564.11/9,931.64
  6. Step 6: Final answer
    x = 7,527.92

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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.