Home / 9,701.40-13,390.26-6,720.60

Finding the Fourth Proportional to 9,701.40, 13,390.26 and 6,720.60

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Solution

The fourth proportional to 9,701.40, 13,390.26 and 6,720.60 is: 9,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,701.40 : 13,390.26 = 6,720.60 : x
  2. Step 2: Convert to fraction form
    9,701.40/13,390.26 = 6,720.60/x
  3. Step 3: Cross multiply
    9,701.40x = 13,390.26 × 6,720.60
  4. Step 4: Simplify right side
    9,701.40x = 89,990,581.36
  5. Step 5: Solve for x
    x = 89,990,581.36/9,701.40
  6. Step 6: Final answer
    x = 9,276.04

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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.