Home / 13,860.16-19,120.36-10,077.46

Finding the Fourth Proportional to 13,860.16, 19,120.36 and 10,077.46

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Solution

The fourth proportional to 13,860.16, 19,120.36 and 10,077.46 is: 13,902.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.16 : 19,120.36 = 10,077.46 : x
  2. Step 2: Convert to fraction form
    13,860.16/19,120.36 = 10,077.46/x
  3. Step 3: Cross multiply
    13,860.16x = 19,120.36 × 10,077.46
  4. Step 4: Simplify right side
    13,860.16x = 192,684,663.09
  5. Step 5: Solve for x
    x = 192,684,663.09/13,860.16
  6. Step 6: Final answer
    x = 13,902.05

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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.