Home / 13,975.28-19,275.76-9,491.20

Finding the Fourth Proportional to 13,975.28, 19,275.76 and 9,491.20

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Solution

The fourth proportional to 13,975.28, 19,275.76 and 9,491.20 is: 13,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.28 : 19,275.76 = 9,491.20 : x
  2. Step 2: Convert to fraction form
    13,975.28/19,275.76 = 9,491.20/x
  3. Step 3: Cross multiply
    13,975.28x = 19,275.76 × 9,491.20
  4. Step 4: Simplify right side
    13,975.28x = 182,950,093.31
  5. Step 5: Solve for x
    x = 182,950,093.31/13,975.28
  6. Step 6: Final answer
    x = 13,090.98

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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.