Home / 11,378,385.08-15,688,754.49-9,196,180.08

Finding the Fourth Proportional to 11,378,385.08, 15,688,754.49 and 9,196,180.08

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Solution

The fourth proportional to 11,378,385.08, 15,688,754.49 and 9,196,180.08 is: 12,679,884.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378,385.08 : 15,688,754.49 = 9,196,180.08 : x
  2. Step 2: Convert to fraction form
    11,378,385.08/15,688,754.49 = 9,196,180.08/x
  3. Step 3: Cross multiply
    11,378,385.08x = 15,688,754.49 × 9,196,180.08
  4. Step 4: Simplify right side
    11,378,385.08x = 144,276,611,520,948.56
  5. Step 5: Solve for x
    x = 144,276,611,520,948.56/11,378,385.08
  6. Step 6: Final answer
    x = 12,679,884.76

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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.