Home / 14,774.92-20,389.26-8,487.40

Finding the Fourth Proportional to 14,774.92, 20,389.26 and 8,487.40

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Solution

The fourth proportional to 14,774.92, 20,389.26 and 8,487.40 is: 11,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,774.92 : 20,389.26 = 8,487.40 : x
  2. Step 2: Convert to fraction form
    14,774.92/20,389.26 = 8,487.40/x
  3. Step 3: Cross multiply
    14,774.92x = 20,389.26 × 8,487.40
  4. Step 4: Simplify right side
    14,774.92x = 173,051,805.32
  5. Step 5: Solve for x
    x = 173,051,805.32/14,774.92
  6. Step 6: Final answer
    x = 11,712.54

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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.