Home / 13,053.37-18,013.45-7,389.19

Finding the Fourth Proportional to 13,053.37, 18,013.45 and 7,389.19

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Solution

The fourth proportional to 13,053.37, 18,013.45 and 7,389.19 is: 10,196.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.37 : 18,013.45 = 7,389.19 : x
  2. Step 2: Convert to fraction form
    13,053.37/18,013.45 = 7,389.19/x
  3. Step 3: Cross multiply
    13,053.37x = 18,013.45 × 7,389.19
  4. Step 4: Simplify right side
    13,053.37x = 133,104,804.61
  5. Step 5: Solve for x
    x = 133,104,804.61/13,053.37
  6. Step 6: Final answer
    x = 10,196.97

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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.