Home / 7,129.74-10,633.86-6,683.21

Finding the Fourth Proportional to 7,129.74, 10,633.86 and 6,683.21

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Solution

The fourth proportional to 7,129.74, 10,633.86 and 6,683.21 is: 9,967.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.74 : 10,633.86 = 6,683.21 : x
  2. Step 2: Convert to fraction form
    7,129.74/10,633.86 = 6,683.21/x
  3. Step 3: Cross multiply
    7,129.74x = 10,633.86 × 6,683.21
  4. Step 4: Simplify right side
    7,129.74x = 71,068,266.32
  5. Step 5: Solve for x
    x = 71,068,266.32/7,129.74
  6. Step 6: Final answer
    x = 9,967.86

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Find fourth proportional to 7,130.74, 10,635.35 and 6,684.21
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.