Home / 13,302.77-18,224.71-12,804.21

Finding the Fourth Proportional to 13,302.77, 18,224.71 and 12,804.21

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Solution

The fourth proportional to 13,302.77, 18,224.71 and 12,804.21 is: 17,541.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.77 : 18,224.71 = 12,804.21 : x
  2. Step 2: Convert to fraction form
    13,302.77/18,224.71 = 12,804.21/x
  3. Step 3: Cross multiply
    13,302.77x = 18,224.71 × 12,804.21
  4. Step 4: Simplify right side
    13,302.77x = 233,352,982.02
  5. Step 5: Solve for x
    x = 233,352,982.02/13,302.77
  6. Step 6: Final answer
    x = 17,541.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.