Home / 8,809.13-12,156.96-4,830.39

Finding the Fourth Proportional to 8,809.13, 12,156.96 and 4,830.39

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Solution

The fourth proportional to 8,809.13, 12,156.96 and 4,830.39 is: 6,666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.13 : 12,156.96 = 4,830.39 : x
  2. Step 2: Convert to fraction form
    8,809.13/12,156.96 = 4,830.39/x
  3. Step 3: Cross multiply
    8,809.13x = 12,156.96 × 4,830.39
  4. Step 4: Simplify right side
    8,809.13x = 58,722,858.01
  5. Step 5: Solve for x
    x = 58,722,858.01/8,809.13
  6. Step 6: Final answer
    x = 6,666.14

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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.