Home / 13,639.51-18,833.12-10,650.16

Finding the Fourth Proportional to 13,639.51, 18,833.12 and 10,650.16

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Solution

The fourth proportional to 13,639.51, 18,833.12 and 10,650.16 is: 14,705.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639.51 : 18,833.12 = 10,650.16 : x
  2. Step 2: Convert to fraction form
    13,639.51/18,833.12 = 10,650.16/x
  3. Step 3: Cross multiply
    13,639.51x = 18,833.12 × 10,650.16
  4. Step 4: Simplify right side
    13,639.51x = 200,575,688.05
  5. Step 5: Solve for x
    x = 200,575,688.05/13,639.51
  6. Step 6: Final answer
    x = 14,705.49

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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.