Home / 12,322.09-18,478.27-5,302.63

Finding the Fourth Proportional to 12,322.09, 18,478.27 and 5,302.63

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Solution

The fourth proportional to 12,322.09, 18,478.27 and 5,302.63 is: 7,951.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,322.09 : 18,478.27 = 5,302.63 : x
  2. Step 2: Convert to fraction form
    12,322.09/18,478.27 = 5,302.63/x
  3. Step 3: Cross multiply
    12,322.09x = 18,478.27 × 5,302.63
  4. Step 4: Simplify right side
    12,322.09x = 97,983,376.89
  5. Step 5: Solve for x
    x = 97,983,376.89/12,322.09
  6. Step 6: Final answer
    x = 7,951.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.