Home / 8,342.39-11,512.16-4,987.05

Finding the Fourth Proportional to 8,342.39, 11,512.16 and 4,987.05

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Solution

The fourth proportional to 8,342.39, 11,512.16 and 4,987.05 is: 6,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.39 : 11,512.16 = 4,987.05 : x
  2. Step 2: Convert to fraction form
    8,342.39/11,512.16 = 4,987.05/x
  3. Step 3: Cross multiply
    8,342.39x = 11,512.16 × 4,987.05
  4. Step 4: Simplify right side
    8,342.39x = 57,411,692.59
  5. Step 5: Solve for x
    x = 57,411,692.59/8,342.39
  6. Step 6: Final answer
    x = 6,881.93

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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.