Home / 13,143.90-19,725.93-5,359.26

Finding the Fourth Proportional to 13,143.90, 19,725.93 and 5,359.26

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Solution

The fourth proportional to 13,143.90, 19,725.93 and 5,359.26 is: 8,043.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.90 : 19,725.93 = 5,359.26 : x
  2. Step 2: Convert to fraction form
    13,143.90/19,725.93 = 5,359.26/x
  3. Step 3: Cross multiply
    13,143.90x = 19,725.93 × 5,359.26
  4. Step 4: Simplify right side
    13,143.90x = 105,716,387.61
  5. Step 5: Solve for x
    x = 105,716,387.61/13,143.90
  6. Step 6: Final answer
    x = 8,043.00

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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.