Home / 13,590.65-18,755.23-7,622.19

Finding the Fourth Proportional to 13,590.65, 18,755.23 and 7,622.19

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Solution

The fourth proportional to 13,590.65, 18,755.23 and 7,622.19 is: 10,518.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.65 : 18,755.23 = 7,622.19 : x
  2. Step 2: Convert to fraction form
    13,590.65/18,755.23 = 7,622.19/x
  3. Step 3: Cross multiply
    13,590.65x = 18,755.23 × 7,622.19
  4. Step 4: Simplify right side
    13,590.65x = 142,955,907.50
  5. Step 5: Solve for x
    x = 142,955,907.50/13,590.65
  6. Step 6: Final answer
    x = 10,518.69

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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.