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Finding the Fourth Proportional to 13,263.58, 18,303.78 and 7,295.86

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Solution

The fourth proportional to 13,263.58, 18,303.78 and 7,295.86 is: 10,068.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.58 : 18,303.78 = 7,295.86 : x
  2. Step 2: Convert to fraction form
    13,263.58/18,303.78 = 7,295.86/x
  3. Step 3: Cross multiply
    13,263.58x = 18,303.78 × 7,295.86
  4. Step 4: Simplify right side
    13,263.58x = 133,541,816.35
  5. Step 5: Solve for x
    x = 133,541,816.35/13,263.58
  6. Step 6: Final answer
    x = 10,068.31

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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.