Home / 13,124.58-18,111.92-7,156.26

Finding the Fourth Proportional to 13,124.58, 18,111.92 and 7,156.26

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Solution

The fourth proportional to 13,124.58, 18,111.92 and 7,156.26 is: 9,875.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.58 : 18,111.92 = 7,156.26 : x
  2. Step 2: Convert to fraction form
    13,124.58/18,111.92 = 7,156.26/x
  3. Step 3: Cross multiply
    13,124.58x = 18,111.92 × 7,156.26
  4. Step 4: Simplify right side
    13,124.58x = 129,613,608.62
  5. Step 5: Solve for x
    x = 129,613,608.62/13,124.58
  6. Step 6: Final answer
    x = 9,875.64

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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.