Home / 13,434.13-18,538.73-7,465.64

Finding the Fourth Proportional to 13,434.13, 18,538.73 and 7,465.64

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Solution

The fourth proportional to 13,434.13, 18,538.73 and 7,465.64 is: 10,302.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.13 : 18,538.73 = 7,465.64 : x
  2. Step 2: Convert to fraction form
    13,434.13/18,538.73 = 7,465.64/x
  3. Step 3: Cross multiply
    13,434.13x = 18,538.73 × 7,465.64
  4. Step 4: Simplify right side
    13,434.13x = 138,403,493.26
  5. Step 5: Solve for x
    x = 138,403,493.26/13,434.13
  6. Step 6: Final answer
    x = 10,302.38

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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.