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Finding the Fourth Proportional to 9,509.81, 14,258.33 and 8,520.19

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Solution

The fourth proportional to 9,509.81, 14,258.33 and 8,520.19 is: 12,774.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.81 : 14,258.33 = 8,520.19 : x
  2. Step 2: Convert to fraction form
    9,509.81/14,258.33 = 8,520.19/x
  3. Step 3: Cross multiply
    9,509.81x = 14,258.33 × 8,520.19
  4. Step 4: Simplify right side
    9,509.81x = 121,483,634.39
  5. Step 5: Solve for x
    x = 121,483,634.39/9,509.81
  6. Step 6: Final answer
    x = 12,774.57

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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.