Home / 13,980.85-19,293.56-7,693.22

Finding the Fourth Proportional to 13,980.85, 19,293.56 and 7,693.22

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Solution

The fourth proportional to 13,980.85, 19,293.56 and 7,693.22 is: 10,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.85 : 19,293.56 = 7,693.22 : x
  2. Step 2: Convert to fraction form
    13,980.85/19,293.56 = 7,693.22/x
  3. Step 3: Cross multiply
    13,980.85x = 19,293.56 × 7,693.22
  4. Step 4: Simplify right side
    13,980.85x = 148,429,669.13
  5. Step 5: Solve for x
    x = 148,429,669.13/13,980.85
  6. Step 6: Final answer
    x = 10,616.64

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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.