Home / 13,291.09-18,341.02-7,322.62

Finding the Fourth Proportional to 13,291.09, 18,341.02 and 7,322.62

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Solution

The fourth proportional to 13,291.09, 18,341.02 and 7,322.62 is: 10,104.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.09 : 18,341.02 = 7,322.62 : x
  2. Step 2: Convert to fraction form
    13,291.09/18,341.02 = 7,322.62/x
  3. Step 3: Cross multiply
    13,291.09x = 18,341.02 × 7,322.62
  4. Step 4: Simplify right side
    13,291.09x = 134,304,319.87
  5. Step 5: Solve for x
    x = 134,304,319.87/13,291.09
  6. Step 6: Final answer
    x = 10,104.84

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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.