Home / 13,426.51-18,528.81-7,458.73

Finding the Fourth Proportional to 13,426.51, 18,528.81 and 7,458.73

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Solution

The fourth proportional to 13,426.51, 18,528.81 and 7,458.73 is: 10,293.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.51 : 18,528.81 = 7,458.73 : x
  2. Step 2: Convert to fraction form
    13,426.51/18,528.81 = 7,458.73/x
  3. Step 3: Cross multiply
    13,426.51x = 18,528.81 × 7,458.73
  4. Step 4: Simplify right side
    13,426.51x = 138,201,391.01
  5. Step 5: Solve for x
    x = 138,201,391.01/13,426.51
  6. Step 6: Final answer
    x = 10,293.17

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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.