Home / 19,809.88-27,350.06-12,748.57

Finding the Fourth Proportional to 19,809.88, 27,350.06 and 12,748.57

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Solution

The fourth proportional to 19,809.88, 27,350.06 and 12,748.57 is: 17,601.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.88 : 27,350.06 = 12,748.57 : x
  2. Step 2: Convert to fraction form
    19,809.88/27,350.06 = 12,748.57/x
  3. Step 3: Cross multiply
    19,809.88x = 27,350.06 × 12,748.57
  4. Step 4: Simplify right side
    19,809.88x = 348,674,154.41
  5. Step 5: Solve for x
    x = 348,674,154.41/19,809.88
  6. Step 6: Final answer
    x = 17,601.02

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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.