Home / 11,518.08-15,894.36-6,483.12

Finding the Fourth Proportional to 11,518.08, 15,894.36 and 6,483.12

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Solution

The fourth proportional to 11,518.08, 15,894.36 and 6,483.12 is: 8,946.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.08 : 15,894.36 = 6,483.12 : x
  2. Step 2: Convert to fraction form
    11,518.08/15,894.36 = 6,483.12/x
  3. Step 3: Cross multiply
    11,518.08x = 15,894.36 × 6,483.12
  4. Step 4: Simplify right side
    11,518.08x = 103,045,043.20
  5. Step 5: Solve for x
    x = 103,045,043.20/11,518.08
  6. Step 6: Final answer
    x = 8,946.37

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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.