Home / 12,809.98-19,210.38-4,487.86

Finding the Fourth Proportional to 12,809.98, 19,210.38 and 4,487.86

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Solution

The fourth proportional to 12,809.98, 19,210.38 and 4,487.86 is: 6,730.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809.98 : 19,210.38 = 4,487.86 : x
  2. Step 2: Convert to fraction form
    12,809.98/19,210.38 = 4,487.86/x
  3. Step 3: Cross multiply
    12,809.98x = 19,210.38 × 4,487.86
  4. Step 4: Simplify right side
    12,809.98x = 86,213,495.99
  5. Step 5: Solve for x
    x = 86,213,495.99/12,809.98
  6. Step 6: Final answer
    x = 6,730.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.