Home / 13,250.49-18,285.30-7,585.05

Finding the Fourth Proportional to 13,250.49, 18,285.30 and 7,585.05

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Solution

The fourth proportional to 13,250.49, 18,285.30 and 7,585.05 is: 10,467.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.49 : 18,285.30 = 7,585.05 : x
  2. Step 2: Convert to fraction form
    13,250.49/18,285.30 = 7,585.05/x
  3. Step 3: Cross multiply
    13,250.49x = 18,285.30 × 7,585.05
  4. Step 4: Simplify right side
    13,250.49x = 138,694,914.77
  5. Step 5: Solve for x
    x = 138,694,914.77/13,250.49
  6. Step 6: Final answer
    x = 10,467.15

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Double scale
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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.