Home / 19,008.72-28,517.76-7,322.76

Finding the Fourth Proportional to 19,008.72, 28,517.76 and 7,322.76

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Solution

The fourth proportional to 19,008.72, 28,517.76 and 7,322.76 is: 10,985.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.72 : 28,517.76 = 7,322.76 : x
  2. Step 2: Convert to fraction form
    19,008.72/28,517.76 = 7,322.76/x
  3. Step 3: Cross multiply
    19,008.72x = 28,517.76 × 7,322.76
  4. Step 4: Simplify right side
    19,008.72x = 208,828,712.22
  5. Step 5: Solve for x
    x = 208,828,712.22/19,008.72
  6. Step 6: Final answer
    x = 10,985.94

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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.