Home / 9,931.92-13,705.85-5,455.56

Finding the Fourth Proportional to 9,931.92, 13,705.85 and 5,455.56

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Solution

The fourth proportional to 9,931.92, 13,705.85 and 5,455.56 is: 7,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.92 : 13,705.85 = 5,455.56 : x
  2. Step 2: Convert to fraction form
    9,931.92/13,705.85 = 5,455.56/x
  3. Step 3: Cross multiply
    9,931.92x = 13,705.85 × 5,455.56
  4. Step 4: Simplify right side
    9,931.92x = 74,773,152.06
  5. Step 5: Solve for x
    x = 74,773,152.06/9,931.92
  6. Step 6: Final answer
    x = 7,528.57

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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.