Home / 13,809.77-19,051.80-9,620.45

Finding the Fourth Proportional to 13,809.77, 19,051.80 and 9,620.45

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Solution

The fourth proportional to 13,809.77, 19,051.80 and 9,620.45 is: 13,272.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.77 : 19,051.80 = 9,620.45 : x
  2. Step 2: Convert to fraction form
    13,809.77/19,051.80 = 9,620.45/x
  3. Step 3: Cross multiply
    13,809.77x = 19,051.80 × 9,620.45
  4. Step 4: Simplify right side
    13,809.77x = 183,286,889.31
  5. Step 5: Solve for x
    x = 183,286,889.31/13,809.77
  6. Step 6: Final answer
    x = 13,272.26

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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.