Home / 13,074.75-18,043.16-7,106.47

Finding the Fourth Proportional to 13,074.75, 18,043.16 and 7,106.47

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Solution

The fourth proportional to 13,074.75, 18,043.16 and 7,106.47 is: 9,806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.75 : 18,043.16 = 7,106.47 : x
  2. Step 2: Convert to fraction form
    13,074.75/18,043.16 = 7,106.47/x
  3. Step 3: Cross multiply
    13,074.75x = 18,043.16 × 7,106.47
  4. Step 4: Simplify right side
    13,074.75x = 128,223,094.60
  5. Step 5: Solve for x
    x = 128,223,094.60/13,074.75
  6. Step 6: Final answer
    x = 9,806.93

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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.