Home / 13,099.51-18,077.14-7,131.23

Finding the Fourth Proportional to 13,099.51, 18,077.14 and 7,131.23

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Solution

The fourth proportional to 13,099.51, 18,077.14 and 7,131.23 is: 9,841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099.51 : 18,077.14 = 7,131.23 : x
  2. Step 2: Convert to fraction form
    13,099.51/18,077.14 = 7,131.23/x
  3. Step 3: Cross multiply
    13,099.51x = 18,077.14 × 7,131.23
  4. Step 4: Simplify right side
    13,099.51x = 128,912,243.08
  5. Step 5: Solve for x
    x = 128,912,243.08/13,099.51
  6. Step 6: Final answer
    x = 9,841.00

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Half scale
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Double scale
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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.