Home / 15,322.42-21,149.33-9,272.67

Finding the Fourth Proportional to 15,322.42, 21,149.33 and 9,272.67

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Solution

The fourth proportional to 15,322.42, 21,149.33 and 9,272.67 is: 12,798.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.42 : 21,149.33 = 9,272.67 : x
  2. Step 2: Convert to fraction form
    15,322.42/21,149.33 = 9,272.67/x
  3. Step 3: Cross multiply
    15,322.42x = 21,149.33 × 9,272.67
  4. Step 4: Simplify right side
    15,322.42x = 196,110,757.81
  5. Step 5: Solve for x
    x = 196,110,757.81/15,322.42
  6. Step 6: Final answer
    x = 12,798.94

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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.