Home / 19,806.98-29,690.46-12,416.62

Finding the Fourth Proportional to 19,806.98, 29,690.46 and 12,416.62

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Solution

The fourth proportional to 19,806.98, 29,690.46 and 12,416.62 is: 18,612.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,806.98 : 29,690.46 = 12,416.62 : x
  2. Step 2: Convert to fraction form
    19,806.98/29,690.46 = 12,416.62/x
  3. Step 3: Cross multiply
    19,806.98x = 29,690.46 × 12,416.62
  4. Step 4: Simplify right side
    19,806.98x = 368,655,159.45
  5. Step 5: Solve for x
    x = 368,655,159.45/19,806.98
  6. Step 6: Final answer
    x = 18,612.39

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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.