Home / 13,055.90-18,017.07-7,087.53

Finding the Fourth Proportional to 13,055.90, 18,017.07 and 7,087.53

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Solution

The fourth proportional to 13,055.90, 18,017.07 and 7,087.53 is: 9,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.90 : 18,017.07 = 7,087.53 : x
  2. Step 2: Convert to fraction form
    13,055.90/18,017.07 = 7,087.53/x
  3. Step 3: Cross multiply
    13,055.90x = 18,017.07 × 7,087.53
  4. Step 4: Simplify right side
    13,055.90x = 127,696,524.14
  5. Step 5: Solve for x
    x = 127,696,524.14/13,055.90
  6. Step 6: Final answer
    x = 9,780.75

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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.