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Finding the Fourth Proportional to 8,663.08, 13,012.20 and 7,646.08

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Solution

The fourth proportional to 8,663.08, 13,012.20 and 7,646.08 is: 11,484.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.08 : 13,012.20 = 7,646.08 : x
  2. Step 2: Convert to fraction form
    8,663.08/13,012.20 = 7,646.08/x
  3. Step 3: Cross multiply
    8,663.08x = 13,012.20 × 7,646.08
  4. Step 4: Simplify right side
    8,663.08x = 99,492,322.18
  5. Step 5: Solve for x
    x = 99,492,322.18/8,663.08
  6. Step 6: Final answer
    x = 11,484.64

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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.