Home / 14,266.88-19,688.72-7,806.91

Finding the Fourth Proportional to 14,266.88, 19,688.72 and 7,806.91

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Solution

The fourth proportional to 14,266.88, 19,688.72 and 7,806.91 is: 10,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266.88 : 19,688.72 = 7,806.91 : x
  2. Step 2: Convert to fraction form
    14,266.88/19,688.72 = 7,806.91/x
  3. Step 3: Cross multiply
    14,266.88x = 19,688.72 × 7,806.91
  4. Step 4: Simplify right side
    14,266.88x = 153,707,976.80
  5. Step 5: Solve for x
    x = 153,707,976.80/14,266.88
  6. Step 6: Final answer
    x = 10,773.76

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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.