Home / 19,387.84-26,748.21-12,677.34

Finding the Fourth Proportional to 19,387.84, 26,748.21 and 12,677.34

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Solution

The fourth proportional to 19,387.84, 26,748.21 and 12,677.34 is: 17,490.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,387.84 : 26,748.21 = 12,677.34 : x
  2. Step 2: Convert to fraction form
    19,387.84/26,748.21 = 12,677.34/x
  3. Step 3: Cross multiply
    19,387.84x = 26,748.21 × 12,677.34
  4. Step 4: Simplify right side
    19,387.84x = 339,096,061.30
  5. Step 5: Solve for x
    x = 339,096,061.30/19,387.84
  6. Step 6: Final answer
    x = 17,490.14

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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.