Home / 19,508.79-29,263.20-7,663.80

Finding the Fourth Proportional to 19,508.79, 29,263.20 and 7,663.80

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Solution

The fourth proportional to 19,508.79, 29,263.20 and 7,663.80 is: 11,495.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,508.79 : 29,263.20 = 7,663.80 : x
  2. Step 2: Convert to fraction form
    19,508.79/29,263.20 = 7,663.80/x
  3. Step 3: Cross multiply
    19,508.79x = 29,263.20 × 7,663.80
  4. Step 4: Simplify right side
    19,508.79x = 224,267,312.16
  5. Step 5: Solve for x
    x = 224,267,312.16/19,508.79
  6. Step 6: Final answer
    x = 11,495.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.