Home / 13,261.95-19,890.50-5,364.05

Finding the Fourth Proportional to 13,261.95, 19,890.50 and 5,364.05

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Solution

The fourth proportional to 13,261.95, 19,890.50 and 5,364.05 is: 8,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.95 : 19,890.50 = 5,364.05 : x
  2. Step 2: Convert to fraction form
    13,261.95/19,890.50 = 5,364.05/x
  3. Step 3: Cross multiply
    13,261.95x = 19,890.50 × 5,364.05
  4. Step 4: Simplify right side
    13,261.95x = 106,693,510.25
  5. Step 5: Solve for x
    x = 106,693,510.25/13,261.95
  6. Step 6: Final answer
    x = 8,045.08

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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.