Home / 12,683.32-17,502.40-6,940.68

Finding the Fourth Proportional to 12,683.32, 17,502.40 and 6,940.68

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Solution

The fourth proportional to 12,683.32, 17,502.40 and 6,940.68 is: 9,577.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.32 : 17,502.40 = 6,940.68 : x
  2. Step 2: Convert to fraction form
    12,683.32/17,502.40 = 6,940.68/x
  3. Step 3: Cross multiply
    12,683.32x = 17,502.40 × 6,940.68
  4. Step 4: Simplify right side
    12,683.32x = 121,478,557.63
  5. Step 5: Solve for x
    x = 121,478,557.63/12,683.32
  6. Step 6: Final answer
    x = 9,577.82

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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.