Home / 13,935.89-19,230.35-7,966.40

Finding the Fourth Proportional to 13,935.89, 19,230.35 and 7,966.40

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Solution

The fourth proportional to 13,935.89, 19,230.35 and 7,966.40 is: 10,992.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.89 : 19,230.35 = 7,966.40 : x
  2. Step 2: Convert to fraction form
    13,935.89/19,230.35 = 7,966.40/x
  3. Step 3: Cross multiply
    13,935.89x = 19,230.35 × 7,966.40
  4. Step 4: Simplify right side
    13,935.89x = 153,196,524.26
  5. Step 5: Solve for x
    x = 153,196,524.26/13,935.89
  6. Step 6: Final answer
    x = 10,992.95

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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.