Home / 9,790.85-13,511.45-5,314.64

Finding the Fourth Proportional to 9,790.85, 13,511.45 and 5,314.64

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Solution

The fourth proportional to 9,790.85, 13,511.45 and 5,314.64 is: 7,334.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,790.85 : 13,511.45 = 5,314.64 : x
  2. Step 2: Convert to fraction form
    9,790.85/13,511.45 = 5,314.64/x
  3. Step 3: Cross multiply
    9,790.85x = 13,511.45 × 5,314.64
  4. Step 4: Simplify right side
    9,790.85x = 71,808,438.36
  5. Step 5: Solve for x
    x = 71,808,438.36/9,790.85
  6. Step 6: Final answer
    x = 7,334.24

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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.