Home / 13,230.94-18,259.62-8,746.90

Finding the Fourth Proportional to 13,230.94, 18,259.62 and 8,746.90

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Solution

The fourth proportional to 13,230.94, 18,259.62 and 8,746.90 is: 12,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.94 : 18,259.62 = 8,746.90 : x
  2. Step 2: Convert to fraction form
    13,230.94/18,259.62 = 8,746.90/x
  3. Step 3: Cross multiply
    13,230.94x = 18,259.62 × 8,746.90
  4. Step 4: Simplify right side
    13,230.94x = 159,715,070.18
  5. Step 5: Solve for x
    x = 159,715,070.18/13,230.94
  6. Step 6: Final answer
    x = 12,071.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.