Home / 13,055.51-18,016.63-7,087.19

Finding the Fourth Proportional to 13,055.51, 18,016.63 and 7,087.19

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Solution

The fourth proportional to 13,055.51, 18,016.63 and 7,087.19 is: 9,780.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.51 : 18,016.63 = 7,087.19 : x
  2. Step 2: Convert to fraction form
    13,055.51/18,016.63 = 7,087.19/x
  3. Step 3: Cross multiply
    13,055.51x = 18,016.63 × 7,087.19
  4. Step 4: Simplify right side
    13,055.51x = 127,687,172.17
  5. Step 5: Solve for x
    x = 127,687,172.17/13,055.51
  6. Step 6: Final answer
    x = 9,780.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.