Home / 13,998.07-19,317-7,710.40

Finding the Fourth Proportional to 13,998.07, 19,317 and 7,710.40

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Solution

The fourth proportional to 13,998.07, 19,317 and 7,710.40 is: 10,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.07 : 19,317 = 7,710.40 : x
  2. Step 2: Convert to fraction form
    13,998.07/19,317 = 7,710.40/x
  3. Step 3: Cross multiply
    13,998.07x = 19,317 × 7,710.40
  4. Step 4: Simplify right side
    13,998.07x = 148,941,796.80
  5. Step 5: Solve for x
    x = 148,941,796.80/13,998.07
  6. Step 6: Final answer
    x = 10,640.17

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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.