Home / 7,688.35-10,587.59-6,679.60

Finding the Fourth Proportional to 7,688.35, 10,587.59 and 6,679.60

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Solution

The fourth proportional to 7,688.35, 10,587.59 and 6,679.60 is: 9,198.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.35 : 10,587.59 = 6,679.60 : x
  2. Step 2: Convert to fraction form
    7,688.35/10,587.59 = 6,679.60/x
  3. Step 3: Cross multiply
    7,688.35x = 10,587.59 × 6,679.60
  4. Step 4: Simplify right side
    7,688.35x = 70,720,866.16
  5. Step 5: Solve for x
    x = 70,720,866.16/7,688.35
  6. Step 6: Final answer
    x = 9,198.45

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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.