Home / 8,902.51-12,285.37-5,125.63

Finding the Fourth Proportional to 8,902.51, 12,285.37 and 5,125.63

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Solution

The fourth proportional to 8,902.51, 12,285.37 and 5,125.63 is: 7,073.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.51 : 12,285.37 = 5,125.63 : x
  2. Step 2: Convert to fraction form
    8,902.51/12,285.37 = 5,125.63/x
  3. Step 3: Cross multiply
    8,902.51x = 12,285.37 × 5,125.63
  4. Step 4: Simplify right side
    8,902.51x = 62,970,259.76
  5. Step 5: Solve for x
    x = 62,970,259.76/8,902.51
  6. Step 6: Final answer
    x = 7,073.32

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Half scale
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Double scale
Find fourth proportional to 8,903.51, 12,286.75 and 5,126.63
Similar ratio
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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.