Home / 9,665.40-14,519.70-9,271.80

Finding the Fourth Proportional to 9,665.40, 14,519.70 and 9,271.80

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Solution

The fourth proportional to 9,665.40, 14,519.70 and 9,271.80 is: 13,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,665.40 : 14,519.70 = 9,271.80 : x
  2. Step 2: Convert to fraction form
    9,665.40/14,519.70 = 9,271.80/x
  3. Step 3: Cross multiply
    9,665.40x = 14,519.70 × 9,271.80
  4. Step 4: Simplify right side
    9,665.40x = 134,623,754.46
  5. Step 5: Solve for x
    x = 134,623,754.46/9,665.40
  6. Step 6: Final answer
    x = 13,928.42

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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.