Home / 9,931.41-13,705.47-5,455.04

Finding the Fourth Proportional to 9,931.41, 13,705.47 and 5,455.04

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Solution

The fourth proportional to 9,931.41, 13,705.47 and 5,455.04 is: 7,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.41 : 13,705.47 = 5,455.04 : x
  2. Step 2: Convert to fraction form
    9,931.41/13,705.47 = 5,455.04/x
  3. Step 3: Cross multiply
    9,931.41x = 13,705.47 × 5,455.04
  4. Step 4: Simplify right side
    9,931.41x = 74,763,818.54
  5. Step 5: Solve for x
    x = 74,763,818.54/9,931.41
  6. Step 6: Final answer
    x = 7,528.02

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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.