Home / 18,856.14-26,038.98-12,157.44

Finding the Fourth Proportional to 18,856.14, 26,038.98 and 12,157.44

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Solution

The fourth proportional to 18,856.14, 26,038.98 and 12,157.44 is: 16,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.14 : 26,038.98 = 12,157.44 : x
  2. Step 2: Convert to fraction form
    18,856.14/26,038.98 = 12,157.44/x
  3. Step 3: Cross multiply
    18,856.14x = 26,038.98 × 12,157.44
  4. Step 4: Simplify right side
    18,856.14x = 316,567,337.01
  5. Step 5: Solve for x
    x = 316,567,337.01/18,856.14
  6. Step 6: Final answer
    x = 16,788.55

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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.