Home / 11,587.02-15,986.05-7,107.30

Finding the Fourth Proportional to 11,587.02, 15,986.05 and 7,107.30

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Solution

The fourth proportional to 11,587.02, 15,986.05 and 7,107.30 is: 9,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587.02 : 15,986.05 = 7,107.30 : x
  2. Step 2: Convert to fraction form
    11,587.02/15,986.05 = 7,107.30/x
  3. Step 3: Cross multiply
    11,587.02x = 15,986.05 × 7,107.30
  4. Step 4: Simplify right side
    11,587.02x = 113,617,653.17
  5. Step 5: Solve for x
    x = 113,617,653.17/11,587.02
  6. Step 6: Final answer
    x = 9,805.60

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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.