Home / 13,933.76-19,227.52-7,646.40

Finding the Fourth Proportional to 13,933.76, 19,227.52 and 7,646.40

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Solution

The fourth proportional to 13,933.76, 19,227.52 and 7,646.40 is: 10,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.76 : 19,227.52 = 7,646.40 : x
  2. Step 2: Convert to fraction form
    13,933.76/19,227.52 = 7,646.40/x
  3. Step 3: Cross multiply
    13,933.76x = 19,227.52 × 7,646.40
  4. Step 4: Simplify right side
    13,933.76x = 147,021,308.93
  5. Step 5: Solve for x
    x = 147,021,308.93/13,933.76
  6. Step 6: Final answer
    x = 10,551.45

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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.