Home / 19,510.50-26,936.09-12,807.86

Finding the Fourth Proportional to 19,510.50, 26,936.09 and 12,807.86

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Solution

The fourth proportional to 19,510.50, 26,936.09 and 12,807.86 is: 17,682.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,510.50 : 26,936.09 = 12,807.86 : x
  2. Step 2: Convert to fraction form
    19,510.50/26,936.09 = 12,807.86/x
  3. Step 3: Cross multiply
    19,510.50x = 26,936.09 × 12,807.86
  4. Step 4: Simplify right side
    19,510.50x = 344,993,591.02
  5. Step 5: Solve for x
    x = 344,993,591.02/19,510.50
  6. Step 6: Final answer
    x = 17,682.45

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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.