Home / 12,816.02-17,689.33-7,230.26

Finding the Fourth Proportional to 12,816.02, 17,689.33 and 7,230.26

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Solution

The fourth proportional to 12,816.02, 17,689.33 and 7,230.26 is: 9,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.02 : 17,689.33 = 7,230.26 : x
  2. Step 2: Convert to fraction form
    12,816.02/17,689.33 = 7,230.26/x
  3. Step 3: Cross multiply
    12,816.02x = 17,689.33 × 7,230.26
  4. Step 4: Simplify right side
    12,816.02x = 127,898,455.13
  5. Step 5: Solve for x
    x = 127,898,455.13/12,816.02
  6. Step 6: Final answer
    x = 9,979.58

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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.