Home / 13,140.36-19,681.59-10,863.06

Finding the Fourth Proportional to 13,140.36, 19,681.59 and 10,863.06

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Solution

The fourth proportional to 13,140.36, 19,681.59 and 10,863.06 is: 16,270.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.36 : 19,681.59 = 10,863.06 : x
  2. Step 2: Convert to fraction form
    13,140.36/19,681.59 = 10,863.06/x
  3. Step 3: Cross multiply
    13,140.36x = 19,681.59 × 10,863.06
  4. Step 4: Simplify right side
    13,140.36x = 213,802,293.07
  5. Step 5: Solve for x
    x = 213,802,293.07/13,140.36
  6. Step 6: Final answer
    x = 16,270.66

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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.