Home / 14,179.90-19,555.52-8,875.20

Finding the Fourth Proportional to 14,179.90, 19,555.52 and 8,875.20

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Solution

The fourth proportional to 14,179.90, 19,555.52 and 8,875.20 is: 12,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.90 : 19,555.52 = 8,875.20 : x
  2. Step 2: Convert to fraction form
    14,179.90/19,555.52 = 8,875.20/x
  3. Step 3: Cross multiply
    14,179.90x = 19,555.52 × 8,875.20
  4. Step 4: Simplify right side
    14,179.90x = 173,559,151.10
  5. Step 5: Solve for x
    x = 173,559,151.10/14,179.90
  6. Step 6: Final answer
    x = 12,239.80

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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.