Home / 8,809.12-12,156.63-4,830.15

Finding the Fourth Proportional to 8,809.12, 12,156.63 and 4,830.15

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Solution

The fourth proportional to 8,809.12, 12,156.63 and 4,830.15 is: 6,665.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.12 : 12,156.63 = 4,830.15 : x
  2. Step 2: Convert to fraction form
    8,809.12/12,156.63 = 4,830.15/x
  3. Step 3: Cross multiply
    8,809.12x = 12,156.63 × 4,830.15
  4. Step 4: Simplify right side
    8,809.12x = 58,718,332.66
  5. Step 5: Solve for x
    x = 58,718,332.66/8,809.12
  6. Step 6: Final answer
    x = 6,665.63

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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.