Home / 9,087.21-13,630.95-5,987.07

Finding the Fourth Proportional to 9,087.21, 13,630.95 and 5,987.07

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Solution

The fourth proportional to 9,087.21, 13,630.95 and 5,987.07 is: 8,980.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,087.21 : 13,630.95 = 5,987.07 : x
  2. Step 2: Convert to fraction form
    9,087.21/13,630.95 = 5,987.07/x
  3. Step 3: Cross multiply
    9,087.21x = 13,630.95 × 5,987.07
  4. Step 4: Simplify right side
    9,087.21x = 81,609,451.82
  5. Step 5: Solve for x
    x = 81,609,451.82/9,087.21
  6. Step 6: Final answer
    x = 8,980.69

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.