Home / 14,006.20-19,328.34-7,718.80

Finding the Fourth Proportional to 14,006.20, 19,328.34 and 7,718.80

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Solution

The fourth proportional to 14,006.20, 19,328.34 and 7,718.80 is: 10,651.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.20 : 19,328.34 = 7,718.80 : x
  2. Step 2: Convert to fraction form
    14,006.20/19,328.34 = 7,718.80/x
  3. Step 3: Cross multiply
    14,006.20x = 19,328.34 × 7,718.80
  4. Step 4: Simplify right side
    14,006.20x = 149,191,590.79
  5. Step 5: Solve for x
    x = 149,191,590.79/14,006.20
  6. Step 6: Final answer
    x = 10,651.82

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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.