Home / 13,008.51-19,515.78-4,243.35

Finding the Fourth Proportional to 13,008.51, 19,515.78 and 4,243.35

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Solution

The fourth proportional to 13,008.51, 19,515.78 and 4,243.35 is: 6,366.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.51 : 19,515.78 = 4,243.35 : x
  2. Step 2: Convert to fraction form
    13,008.51/19,515.78 = 4,243.35/x
  3. Step 3: Cross multiply
    13,008.51x = 19,515.78 × 4,243.35
  4. Step 4: Simplify right side
    13,008.51x = 82,812,285.06
  5. Step 5: Solve for x
    x = 82,812,285.06/13,008.51
  6. Step 6: Final answer
    x = 6,366.01

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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.