Home / 19,811.12-27,339.36-10,858.46

Finding the Fourth Proportional to 19,811.12, 27,339.36 and 10,858.46

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Solution

The fourth proportional to 19,811.12, 27,339.36 and 10,858.46 is: 14,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.12 : 27,339.36 = 10,858.46 : x
  2. Step 2: Convert to fraction form
    19,811.12/27,339.36 = 10,858.46/x
  3. Step 3: Cross multiply
    19,811.12x = 27,339.36 × 10,858.46
  4. Step 4: Simplify right side
    19,811.12x = 296,863,346.99
  5. Step 5: Solve for x
    x = 296,863,346.99/19,811.12
  6. Step 6: Final answer
    x = 14,984.68

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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.