Home / 19,015.05-28,522.58-7,320.07

Finding the Fourth Proportional to 19,015.05, 28,522.58 and 7,320.07

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Solution

The fourth proportional to 19,015.05, 28,522.58 and 7,320.07 is: 10,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.05 : 28,522.58 = 7,320.07 : x
  2. Step 2: Convert to fraction form
    19,015.05/28,522.58 = 7,320.07/x
  3. Step 3: Cross multiply
    19,015.05x = 28,522.58 × 7,320.07
  4. Step 4: Simplify right side
    19,015.05x = 208,787,322.41
  5. Step 5: Solve for x
    x = 208,787,322.41/19,015.05
  6. Step 6: Final answer
    x = 10,980.11

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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.