Home / 10,995.17-15,169.74-7,017.58

Finding the Fourth Proportional to 10,995.17, 15,169.74 and 7,017.58

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Solution

The fourth proportional to 10,995.17, 15,169.74 and 7,017.58 is: 9,681.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.17 : 15,169.74 = 7,017.58 : x
  2. Step 2: Convert to fraction form
    10,995.17/15,169.74 = 7,017.58/x
  3. Step 3: Cross multiply
    10,995.17x = 15,169.74 × 7,017.58
  4. Step 4: Simplify right side
    10,995.17x = 106,454,864.03
  5. Step 5: Solve for x
    x = 106,454,864.03/10,995.17
  6. Step 6: Final answer
    x = 9,681.97

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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.