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Finding the Fourth Proportional to 13,395.00, 18,484.48 and 7,426.55

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Solution

The fourth proportional to 13,395.00, 18,484.48 and 7,426.55 is: 10,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.00 : 18,484.48 = 7,426.55 : x
  2. Step 2: Convert to fraction form
    13,395.00/18,484.48 = 7,426.55/x
  3. Step 3: Cross multiply
    13,395.00x = 18,484.48 × 7,426.55
  4. Step 4: Simplify right side
    13,395.00x = 137,275,970.44
  5. Step 5: Solve for x
    x = 137,275,970.44/13,395.00
  6. Step 6: Final answer
    x = 10,248.30

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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.