Home / 13,864.77-20,701.58-13,724.64

Finding the Fourth Proportional to 13,864.77, 20,701.58 and 13,724.64

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Solution

The fourth proportional to 13,864.77, 20,701.58 and 13,724.64 is: 20,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.77 : 20,701.58 = 13,724.64 : x
  2. Step 2: Convert to fraction form
    13,864.77/20,701.58 = 13,724.64/x
  3. Step 3: Cross multiply
    13,864.77x = 20,701.58 × 13,724.64
  4. Step 4: Simplify right side
    13,864.77x = 284,121,664.31
  5. Step 5: Solve for x
    x = 284,121,664.31/13,864.77
  6. Step 6: Final answer
    x = 20,492.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.