Home / 8,427.60-11,625.08-5,445.19

Finding the Fourth Proportional to 8,427.60, 11,625.08 and 5,445.19

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Solution

The fourth proportional to 8,427.60, 11,625.08 and 5,445.19 is: 7,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.60 : 11,625.08 = 5,445.19 : x
  2. Step 2: Convert to fraction form
    8,427.60/11,625.08 = 5,445.19/x
  3. Step 3: Cross multiply
    8,427.60x = 11,625.08 × 5,445.19
  4. Step 4: Simplify right side
    8,427.60x = 63,300,756.67
  5. Step 5: Solve for x
    x = 63,300,756.67/8,427.60
  6. Step 6: Final answer
    x = 7,511.13

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Half scale
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Double scale
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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.