Home / 14,750.90-20,354.73-8,782.82

Finding the Fourth Proportional to 14,750.90, 20,354.73 and 8,782.82

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Solution

The fourth proportional to 14,750.90, 20,354.73 and 8,782.82 is: 12,119.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.90 : 20,354.73 = 8,782.82 : x
  2. Step 2: Convert to fraction form
    14,750.90/20,354.73 = 8,782.82/x
  3. Step 3: Cross multiply
    14,750.90x = 20,354.73 × 8,782.82
  4. Step 4: Simplify right side
    14,750.90x = 178,771,929.74
  5. Step 5: Solve for x
    x = 178,771,929.74/14,750.90
  6. Step 6: Final answer
    x = 12,119.39

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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.