Home / 13,927.56-19,228.68-9,218.40

Finding the Fourth Proportional to 13,927.56, 19,228.68 and 9,218.40

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Solution

The fourth proportional to 13,927.56, 19,228.68 and 9,218.40 is: 12,727.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.56 : 19,228.68 = 9,218.40 : x
  2. Step 2: Convert to fraction form
    13,927.56/19,228.68 = 9,218.40/x
  3. Step 3: Cross multiply
    13,927.56x = 19,228.68 × 9,218.40
  4. Step 4: Simplify right side
    13,927.56x = 177,257,663.71
  5. Step 5: Solve for x
    x = 177,257,663.71/13,927.56
  6. Step 6: Final answer
    x = 12,727.12

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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.