Home / 19,809.12-27,336.69-10,856.70

Finding the Fourth Proportional to 19,809.12, 27,336.69 and 10,856.70

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Solution

The fourth proportional to 19,809.12, 27,336.69 and 10,856.70 is: 14,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.12 : 27,336.69 = 10,856.70 : x
  2. Step 2: Convert to fraction form
    19,809.12/27,336.69 = 10,856.70/x
  3. Step 3: Cross multiply
    19,809.12x = 27,336.69 × 10,856.70
  4. Step 4: Simplify right side
    19,809.12x = 296,786,242.32
  5. Step 5: Solve for x
    x = 296,786,242.32/19,809.12
  6. Step 6: Final answer
    x = 14,982.30

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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.