Home / 13,842.63-20,838.74-12,637.35

Finding the Fourth Proportional to 13,842.63, 20,838.74 and 12,637.35

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Solution

The fourth proportional to 13,842.63, 20,838.74 and 12,637.35 is: 19,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.63 : 20,838.74 = 12,637.35 : x
  2. Step 2: Convert to fraction form
    13,842.63/20,838.74 = 12,637.35/x
  3. Step 3: Cross multiply
    13,842.63x = 20,838.74 × 12,637.35
  4. Step 4: Simplify right side
    13,842.63x = 263,346,387.75
  5. Step 5: Solve for x
    x = 263,346,387.75/13,842.63
  6. Step 6: Final answer
    x = 19,024.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.