Home / 14,121.16-19,486.65-7,833.40

Finding the Fourth Proportional to 14,121.16, 19,486.65 and 7,833.40

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Solution

The fourth proportional to 14,121.16, 19,486.65 and 7,833.40 is: 10,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.16 : 19,486.65 = 7,833.40 : x
  2. Step 2: Convert to fraction form
    14,121.16/19,486.65 = 7,833.40/x
  3. Step 3: Cross multiply
    14,121.16x = 19,486.65 × 7,833.40
  4. Step 4: Simplify right side
    14,121.16x = 152,646,724.11
  5. Step 5: Solve for x
    x = 152,646,724.11/14,121.16
  6. Step 6: Final answer
    x = 10,809.79

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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.