Home / 9,385.99-12,923.16-7,966.72

Finding the Fourth Proportional to 9,385.99, 12,923.16 and 7,966.72

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Solution

The fourth proportional to 9,385.99, 12,923.16 and 7,966.72 is: 10,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.99 : 12,923.16 = 7,966.72 : x
  2. Step 2: Convert to fraction form
    9,385.99/12,923.16 = 7,966.72/x
  3. Step 3: Cross multiply
    9,385.99x = 12,923.16 × 7,966.72
  4. Step 4: Simplify right side
    9,385.99x = 102,955,197.24
  5. Step 5: Solve for x
    x = 102,955,197.24/9,385.99
  6. Step 6: Final answer
    x = 10,969.03

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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.