Home / 12,271.47-18,409.80-7,008.96

Finding the Fourth Proportional to 12,271.47, 18,409.80 and 7,008.96

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Solution

The fourth proportional to 12,271.47, 18,409.80 and 7,008.96 is: 10,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.47 : 18,409.80 = 7,008.96 : x
  2. Step 2: Convert to fraction form
    12,271.47/18,409.80 = 7,008.96/x
  3. Step 3: Cross multiply
    12,271.47x = 18,409.80 × 7,008.96
  4. Step 4: Simplify right side
    12,271.47x = 129,033,551.81
  5. Step 5: Solve for x
    x = 129,033,551.81/12,271.47
  6. Step 6: Final answer
    x = 10,514.92

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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.