Home / 10,015.08-15,023.16-4,172.28

Finding the Fourth Proportional to 10,015.08, 15,023.16 and 4,172.28

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Solution

The fourth proportional to 10,015.08, 15,023.16 and 4,172.28 is: 6,258.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.08 : 15,023.16 = 4,172.28 : x
  2. Step 2: Convert to fraction form
    10,015.08/15,023.16 = 4,172.28/x
  3. Step 3: Cross multiply
    10,015.08x = 15,023.16 × 4,172.28
  4. Step 4: Simplify right side
    10,015.08x = 62,680,830.00
  5. Step 5: Solve for x
    x = 62,680,830.00/10,015.08
  6. Step 6: Final answer
    x = 6,258.64

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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.