Home / 19,299.50-26,615.07-12,590.30

Finding the Fourth Proportional to 19,299.50, 26,615.07 and 12,590.30

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Solution

The fourth proportional to 19,299.50, 26,615.07 and 12,590.30 is: 17,362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,299.50 : 26,615.07 = 12,590.30 : x
  2. Step 2: Convert to fraction form
    19,299.50/26,615.07 = 12,590.30/x
  3. Step 3: Cross multiply
    19,299.50x = 26,615.07 × 12,590.30
  4. Step 4: Simplify right side
    19,299.50x = 335,091,715.82
  5. Step 5: Solve for x
    x = 335,091,715.82/19,299.50
  6. Step 6: Final answer
    x = 17,362.71

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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.