Home / 13,256.51-18,294.35-7,288.56

Finding the Fourth Proportional to 13,256.51, 18,294.35 and 7,288.56

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Solution

The fourth proportional to 13,256.51, 18,294.35 and 7,288.56 is: 10,058.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.51 : 18,294.35 = 7,288.56 : x
  2. Step 2: Convert to fraction form
    13,256.51/18,294.35 = 7,288.56/x
  3. Step 3: Cross multiply
    13,256.51x = 18,294.35 × 7,288.56
  4. Step 4: Simplify right side
    13,256.51x = 133,339,431.19
  5. Step 5: Solve for x
    x = 133,339,431.19/13,256.51
  6. Step 6: Final answer
    x = 10,058.42

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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.