Home / 12,740.10-19,110.15-8,592.90

Finding the Fourth Proportional to 12,740.10, 19,110.15 and 8,592.90

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Solution

The fourth proportional to 12,740.10, 19,110.15 and 8,592.90 is: 12,889.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.10 : 19,110.15 = 8,592.90 : x
  2. Step 2: Convert to fraction form
    12,740.10/19,110.15 = 8,592.90/x
  3. Step 3: Cross multiply
    12,740.10x = 19,110.15 × 8,592.90
  4. Step 4: Simplify right side
    12,740.10x = 164,211,607.94
  5. Step 5: Solve for x
    x = 164,211,607.94/12,740.10
  6. Step 6: Final answer
    x = 12,889.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.