Home / 13,753.27-18,979-7,465.51

Finding the Fourth Proportional to 13,753.27, 18,979 and 7,465.51

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Solution

The fourth proportional to 13,753.27, 18,979 and 7,465.51 is: 10,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.27 : 18,979 = 7,465.51 : x
  2. Step 2: Convert to fraction form
    13,753.27/18,979 = 7,465.51/x
  3. Step 3: Cross multiply
    13,753.27x = 18,979 × 7,465.51
  4. Step 4: Simplify right side
    13,753.27x = 141,687,914.29
  5. Step 5: Solve for x
    x = 141,687,914.29/13,753.27
  6. Step 6: Final answer
    x = 10,302.13

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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.