Home / 19,394.18-26,754.50-12,680.10

Finding the Fourth Proportional to 19,394.18, 26,754.50 and 12,680.10

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Solution

The fourth proportional to 19,394.18, 26,754.50 and 12,680.10 is: 17,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,394.18 : 26,754.50 = 12,680.10 : x
  2. Step 2: Convert to fraction form
    19,394.18/26,754.50 = 12,680.10/x
  3. Step 3: Cross multiply
    19,394.18x = 26,754.50 × 12,680.10
  4. Step 4: Simplify right side
    19,394.18x = 339,249,735.45
  5. Step 5: Solve for x
    x = 339,249,735.45/19,394.18
  6. Step 6: Final answer
    x = 17,492.35

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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.