Home / 10,853.40-14,977.08-6,137.76

Finding the Fourth Proportional to 10,853.40, 14,977.08 and 6,137.76

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Solution

The fourth proportional to 10,853.40, 14,977.08 and 6,137.76 is: 8,469.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,853.40 : 14,977.08 = 6,137.76 : x
  2. Step 2: Convert to fraction form
    10,853.40/14,977.08 = 6,137.76/x
  3. Step 3: Cross multiply
    10,853.40x = 14,977.08 × 6,137.76
  4. Step 4: Simplify right side
    10,853.40x = 91,925,722.54
  5. Step 5: Solve for x
    x = 91,925,722.54/10,853.40
  6. Step 6: Final answer
    x = 8,469.76

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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.