Home / 13,160.19-18,161.33-7,192.23

Finding the Fourth Proportional to 13,160.19, 18,161.33 and 7,192.23

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Solution

The fourth proportional to 13,160.19, 18,161.33 and 7,192.23 is: 9,925.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.19 : 18,161.33 = 7,192.23 : x
  2. Step 2: Convert to fraction form
    13,160.19/18,161.33 = 7,192.23/x
  3. Step 3: Cross multiply
    13,160.19x = 18,161.33 × 7,192.23
  4. Step 4: Simplify right side
    13,160.19x = 130,620,462.47
  5. Step 5: Solve for x
    x = 130,620,462.47/13,160.19
  6. Step 6: Final answer
    x = 9,925.42

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Half scale
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Double scale
Find fourth proportional to 13,161.19, 18,162.71 and 7,193.23
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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.