Home / 19,015.30-28,522.77-5,164.30

Finding the Fourth Proportional to 19,015.30, 28,522.77 and 5,164.30

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Solution

The fourth proportional to 19,015.30, 28,522.77 and 5,164.30 is: 7,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.30 : 28,522.77 = 5,164.30 : x
  2. Step 2: Convert to fraction form
    19,015.30/28,522.77 = 5,164.30/x
  3. Step 3: Cross multiply
    19,015.30x = 28,522.77 × 5,164.30
  4. Step 4: Simplify right side
    19,015.30x = 147,300,141.11
  5. Step 5: Solve for x
    x = 147,300,141.11/19,015.30
  6. Step 6: Final answer
    x = 7,746.40

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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.