Home / 14,179.20-19,564.65-8,210.40

Finding the Fourth Proportional to 14,179.20, 19,564.65 and 8,210.40

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Solution

The fourth proportional to 14,179.20, 19,564.65 and 8,210.40 is: 11,328.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.20 : 19,564.65 = 8,210.40 : x
  2. Step 2: Convert to fraction form
    14,179.20/19,564.65 = 8,210.40/x
  3. Step 3: Cross multiply
    14,179.20x = 19,564.65 × 8,210.40
  4. Step 4: Simplify right side
    14,179.20x = 160,633,602.36
  5. Step 5: Solve for x
    x = 160,633,602.36/14,179.20
  6. Step 6: Final answer
    x = 11,328.82

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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.