Home / 13,798.73-20,681.89-6,387.53

Finding the Fourth Proportional to 13,798.73, 20,681.89 and 6,387.53

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Solution

The fourth proportional to 13,798.73, 20,681.89 and 6,387.53 is: 9,573.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.73 : 20,681.89 = 6,387.53 : x
  2. Step 2: Convert to fraction form
    13,798.73/20,681.89 = 6,387.53/x
  3. Step 3: Cross multiply
    13,798.73x = 20,681.89 × 6,387.53
  4. Step 4: Simplify right side
    13,798.73x = 132,106,192.83
  5. Step 5: Solve for x
    x = 132,106,192.83/13,798.73
  6. Step 6: Final answer
    x = 9,573.79

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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.