Home / 13,277.15-18,322.32-7,308.68

Finding the Fourth Proportional to 13,277.15, 18,322.32 and 7,308.68

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Solution

The fourth proportional to 13,277.15, 18,322.32 and 7,308.68 is: 10,085.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.15 : 18,322.32 = 7,308.68 : x
  2. Step 2: Convert to fraction form
    13,277.15/18,322.32 = 7,308.68/x
  3. Step 3: Cross multiply
    13,277.15x = 18,322.32 × 7,308.68
  4. Step 4: Simplify right side
    13,277.15x = 133,911,882.13
  5. Step 5: Solve for x
    x = 133,911,882.13/13,277.15
  6. Step 6: Final answer
    x = 10,085.89

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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.