Home / 13,969.21-19,277.25-7,681.60

Finding the Fourth Proportional to 13,969.21, 19,277.25 and 7,681.60

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Solution

The fourth proportional to 13,969.21, 19,277.25 and 7,681.60 is: 10,600.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.21 : 19,277.25 = 7,681.60 : x
  2. Step 2: Convert to fraction form
    13,969.21/19,277.25 = 7,681.60/x
  3. Step 3: Cross multiply
    13,969.21x = 19,277.25 × 7,681.60
  4. Step 4: Simplify right side
    13,969.21x = 148,080,123.60
  5. Step 5: Solve for x
    x = 148,080,123.60/13,969.21
  6. Step 6: Final answer
    x = 10,600.47

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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.