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Finding the Fourth Proportional to 13,263.60, 18,304.08 and 7,295.60

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Solution

The fourth proportional to 13,263.60, 18,304.08 and 7,295.60 is: 10,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.60 : 18,304.08 = 7,295.60 : x
  2. Step 2: Convert to fraction form
    13,263.60/18,304.08 = 7,295.60/x
  3. Step 3: Cross multiply
    13,263.60x = 18,304.08 × 7,295.60
  4. Step 4: Simplify right side
    13,263.60x = 133,539,246.05
  5. Step 5: Solve for x
    x = 133,539,246.05/13,263.60
  6. Step 6: Final answer
    x = 10,068.10

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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.