Home / 13,275.98-18,322.08-7,308.86

Finding the Fourth Proportional to 13,275.98, 18,322.08 and 7,308.86

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Solution

The fourth proportional to 13,275.98, 18,322.08 and 7,308.86 is: 10,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.98 : 18,322.08 = 7,308.86 : x
  2. Step 2: Convert to fraction form
    13,275.98/18,322.08 = 7,308.86/x
  3. Step 3: Cross multiply
    13,275.98x = 18,322.08 × 7,308.86
  4. Step 4: Simplify right side
    13,275.98x = 133,913,517.63
  5. Step 5: Solve for x
    x = 133,913,517.63/13,275.98
  6. Step 6: Final answer
    x = 10,086.90

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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.