Home / 11,587.25-15,990.31-6,281.93

Finding the Fourth Proportional to 11,587.25, 15,990.31 and 6,281.93

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Solution

The fourth proportional to 11,587.25, 15,990.31 and 6,281.93 is: 8,669.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587.25 : 15,990.31 = 6,281.93 : x
  2. Step 2: Convert to fraction form
    11,587.25/15,990.31 = 6,281.93/x
  3. Step 3: Cross multiply
    11,587.25x = 15,990.31 × 6,281.93
  4. Step 4: Simplify right side
    11,587.25x = 100,450,008.10
  5. Step 5: Solve for x
    x = 100,450,008.10/11,587.25
  6. Step 6: Final answer
    x = 8,669.01

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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.