Home / 19,455.81-29,185.47-6,807.66

Finding the Fourth Proportional to 19,455.81, 29,185.47 and 6,807.66

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Solution

The fourth proportional to 19,455.81, 29,185.47 and 6,807.66 is: 10,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,455.81 : 29,185.47 = 6,807.66 : x
  2. Step 2: Convert to fraction form
    19,455.81/29,185.47 = 6,807.66/x
  3. Step 3: Cross multiply
    19,455.81x = 29,185.47 × 6,807.66
  4. Step 4: Simplify right side
    19,455.81x = 198,684,756.70
  5. Step 5: Solve for x
    x = 198,684,756.70/19,455.81
  6. Step 6: Final answer
    x = 10,212.10

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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.