Home / 12,660.04-17,470.78-6,995.16

Finding the Fourth Proportional to 12,660.04, 17,470.78 and 6,995.16

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Solution

The fourth proportional to 12,660.04, 17,470.78 and 6,995.16 is: 9,653.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.04 : 17,470.78 = 6,995.16 : x
  2. Step 2: Convert to fraction form
    12,660.04/17,470.78 = 6,995.16/x
  3. Step 3: Cross multiply
    12,660.04x = 17,470.78 × 6,995.16
  4. Step 4: Simplify right side
    12,660.04x = 122,210,901.42
  5. Step 5: Solve for x
    x = 122,210,901.42/12,660.04
  6. Step 6: Final answer
    x = 9,653.28

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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.