Home / 13,533.06-18,690.28-9,295.28

Finding the Fourth Proportional to 13,533.06, 18,690.28 and 9,295.28

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Solution

The fourth proportional to 13,533.06, 18,690.28 and 9,295.28 is: 12,837.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.06 : 18,690.28 = 9,295.28 : x
  2. Step 2: Convert to fraction form
    13,533.06/18,690.28 = 9,295.28/x
  3. Step 3: Cross multiply
    13,533.06x = 18,690.28 × 9,295.28
  4. Step 4: Simplify right side
    13,533.06x = 173,731,385.88
  5. Step 5: Solve for x
    x = 173,731,385.88/13,533.06
  6. Step 6: Final answer
    x = 12,837.55

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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.