Home / 18,722.07-28,075.55-9,358.47

Finding the Fourth Proportional to 18,722.07, 28,075.55 and 9,358.47

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Solution

The fourth proportional to 18,722.07, 28,075.55 and 9,358.47 is: 14,033.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.07 : 28,075.55 = 9,358.47 : x
  2. Step 2: Convert to fraction form
    18,722.07/28,075.55 = 9,358.47/x
  3. Step 3: Cross multiply
    18,722.07x = 28,075.55 × 9,358.47
  4. Step 4: Simplify right side
    18,722.07x = 262,744,145.62
  5. Step 5: Solve for x
    x = 262,744,145.62/18,722.07
  6. Step 6: Final answer
    x = 14,033.93

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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.