Home / 13,194.87-18,208.95-7,145.18

Finding the Fourth Proportional to 13,194.87, 18,208.95 and 7,145.18

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Solution

The fourth proportional to 13,194.87, 18,208.95 and 7,145.18 is: 9,860.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.87 : 18,208.95 = 7,145.18 : x
  2. Step 2: Convert to fraction form
    13,194.87/18,208.95 = 7,145.18/x
  3. Step 3: Cross multiply
    13,194.87x = 18,208.95 × 7,145.18
  4. Step 4: Simplify right side
    13,194.87x = 130,106,225.36
  5. Step 5: Solve for x
    x = 130,106,225.36/13,194.87
  6. Step 6: Final answer
    x = 9,860.36

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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.