Home / 11,237.89-16,856.70-8,774.74

Finding the Fourth Proportional to 11,237.89, 16,856.70 and 8,774.74

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Solution

The fourth proportional to 11,237.89, 16,856.70 and 8,774.74 is: 13,162.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.89 : 16,856.70 = 8,774.74 : x
  2. Step 2: Convert to fraction form
    11,237.89/16,856.70 = 8,774.74/x
  3. Step 3: Cross multiply
    11,237.89x = 16,856.70 × 8,774.74
  4. Step 4: Simplify right side
    11,237.89x = 147,913,159.76
  5. Step 5: Solve for x
    x = 147,913,159.76/11,237.89
  6. Step 6: Final answer
    x = 13,162.00

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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.