Home / 12,535.12-17,297.70-7,158.64

Finding the Fourth Proportional to 12,535.12, 17,297.70 and 7,158.64

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Solution

The fourth proportional to 12,535.12, 17,297.70 and 7,158.64 is: 9,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.12 : 17,297.70 = 7,158.64 : x
  2. Step 2: Convert to fraction form
    12,535.12/17,297.70 = 7,158.64/x
  3. Step 3: Cross multiply
    12,535.12x = 17,297.70 × 7,158.64
  4. Step 4: Simplify right side
    12,535.12x = 123,828,007.13
  5. Step 5: Solve for x
    x = 123,828,007.13/12,535.12
  6. Step 6: Final answer
    x = 9,878.49

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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.