Home / 13,085.26-18,057.80-7,116.93

Finding the Fourth Proportional to 13,085.26, 18,057.80 and 7,116.93

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Solution

The fourth proportional to 13,085.26, 18,057.80 and 7,116.93 is: 9,821.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.26 : 18,057.80 = 7,116.93 : x
  2. Step 2: Convert to fraction form
    13,085.26/18,057.80 = 7,116.93/x
  3. Step 3: Cross multiply
    13,085.26x = 18,057.80 × 7,116.93
  4. Step 4: Simplify right side
    13,085.26x = 128,516,098.55
  5. Step 5: Solve for x
    x = 128,516,098.55/13,085.26
  6. Step 6: Final answer
    x = 9,821.44

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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.