Home / 13,640.04-18,822.44-7,590.12

Finding the Fourth Proportional to 13,640.04, 18,822.44 and 7,590.12

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Solution

The fourth proportional to 13,640.04, 18,822.44 and 7,590.12 is: 10,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640.04 : 18,822.44 = 7,590.12 : x
  2. Step 2: Convert to fraction form
    13,640.04/18,822.44 = 7,590.12/x
  3. Step 3: Cross multiply
    13,640.04x = 18,822.44 × 7,590.12
  4. Step 4: Simplify right side
    13,640.04x = 142,864,578.29
  5. Step 5: Solve for x
    x = 142,864,578.29/13,640.04
  6. Step 6: Final answer
    x = 10,473.91

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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.