Home / 19,100.12-28,646.36-6,448.64

Finding the Fourth Proportional to 19,100.12, 28,646.36 and 6,448.64

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Solution

The fourth proportional to 19,100.12, 28,646.36 and 6,448.64 is: 9,671.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.12 : 28,646.36 = 6,448.64 : x
  2. Step 2: Convert to fraction form
    19,100.12/28,646.36 = 6,448.64/x
  3. Step 3: Cross multiply
    19,100.12x = 28,646.36 × 6,448.64
  4. Step 4: Simplify right side
    19,100.12x = 184,730,062.95
  5. Step 5: Solve for x
    x = 184,730,062.95/19,100.12
  6. Step 6: Final answer
    x = 9,671.67

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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.