Home / 7,639.08-10,529.55-5,397.36

Finding the Fourth Proportional to 7,639.08, 10,529.55 and 5,397.36

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Solution

The fourth proportional to 7,639.08, 10,529.55 and 5,397.36 is: 7,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.08 : 10,529.55 = 5,397.36 : x
  2. Step 2: Convert to fraction form
    7,639.08/10,529.55 = 5,397.36/x
  3. Step 3: Cross multiply
    7,639.08x = 10,529.55 × 5,397.36
  4. Step 4: Simplify right side
    7,639.08x = 56,831,771.99
  5. Step 5: Solve for x
    x = 56,831,771.99/7,639.08
  6. Step 6: Final answer
    x = 7,439.61

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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.