Home / 19,815.12-29,749.08-11,501.12

Finding the Fourth Proportional to 19,815.12, 29,749.08 and 11,501.12

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Solution

The fourth proportional to 19,815.12, 29,749.08 and 11,501.12 is: 17,267.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.12 : 29,749.08 = 11,501.12 : x
  2. Step 2: Convert to fraction form
    19,815.12/29,749.08 = 11,501.12/x
  3. Step 3: Cross multiply
    19,815.12x = 29,749.08 × 11,501.12
  4. Step 4: Simplify right side
    19,815.12x = 342,147,738.97
  5. Step 5: Solve for x
    x = 342,147,738.97/19,815.12
  6. Step 6: Final answer
    x = 17,267.00

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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.