Home / 13,538.03-18,682.59-7,570.04

Finding the Fourth Proportional to 13,538.03, 18,682.59 and 7,570.04

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Solution

The fourth proportional to 13,538.03, 18,682.59 and 7,570.04 is: 10,446.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.03 : 18,682.59 = 7,570.04 : x
  2. Step 2: Convert to fraction form
    13,538.03/18,682.59 = 7,570.04/x
  3. Step 3: Cross multiply
    13,538.03x = 18,682.59 × 7,570.04
  4. Step 4: Simplify right side
    13,538.03x = 141,427,860.19
  5. Step 5: Solve for x
    x = 141,427,860.19/13,538.03
  6. Step 6: Final answer
    x = 10,446.71

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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.