Home / 8,809.05-12,156.99-4,830.23

Finding the Fourth Proportional to 8,809.05, 12,156.99 and 4,830.23

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Solution

The fourth proportional to 8,809.05, 12,156.99 and 4,830.23 is: 6,665.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.05 : 12,156.99 = 4,830.23 : x
  2. Step 2: Convert to fraction form
    8,809.05/12,156.99 = 4,830.23/x
  3. Step 3: Cross multiply
    8,809.05x = 12,156.99 × 4,830.23
  4. Step 4: Simplify right side
    8,809.05x = 58,721,070.09
  5. Step 5: Solve for x
    x = 58,721,070.09/8,809.05
  6. Step 6: Final answer
    x = 6,665.99

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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.