Home / 13,256.76-18,294.45-7,288.47

Finding the Fourth Proportional to 13,256.76, 18,294.45 and 7,288.47

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Solution

The fourth proportional to 13,256.76, 18,294.45 and 7,288.47 is: 10,058.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.76 : 18,294.45 = 7,288.47 : x
  2. Step 2: Convert to fraction form
    13,256.76/18,294.45 = 7,288.47/x
  3. Step 3: Cross multiply
    13,256.76x = 18,294.45 × 7,288.47
  4. Step 4: Simplify right side
    13,256.76x = 133,338,527.12
  5. Step 5: Solve for x
    x = 133,338,527.12/13,256.76
  6. Step 6: Final answer
    x = 10,058.15

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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.