Home / 14,441.83-19,929.71-8,778.40

Finding the Fourth Proportional to 14,441.83, 19,929.71 and 8,778.40

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Solution

The fourth proportional to 14,441.83, 19,929.71 and 8,778.40 is: 12,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,441.83 : 19,929.71 = 8,778.40 : x
  2. Step 2: Convert to fraction form
    14,441.83/19,929.71 = 8,778.40/x
  3. Step 3: Cross multiply
    14,441.83x = 19,929.71 × 8,778.40
  4. Step 4: Simplify right side
    14,441.83x = 174,950,938.39
  5. Step 5: Solve for x
    x = 174,950,938.39/14,441.83
  6. Step 6: Final answer
    x = 12,114.18

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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.