Home / 13,905.64-19,206.64-10,122.82

Finding the Fourth Proportional to 13,905.64, 19,206.64 and 10,122.82

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Solution

The fourth proportional to 13,905.64, 19,206.64 and 10,122.82 is: 13,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.64 : 19,206.64 = 10,122.82 : x
  2. Step 2: Convert to fraction form
    13,905.64/19,206.64 = 10,122.82/x
  3. Step 3: Cross multiply
    13,905.64x = 19,206.64 × 10,122.82
  4. Step 4: Simplify right side
    13,905.64x = 194,425,359.52
  5. Step 5: Solve for x
    x = 194,425,359.52/13,905.64
  6. Step 6: Final answer
    x = 13,981.76

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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.