Home / 19,487.93-26,875.41-12,771.12

Finding the Fourth Proportional to 19,487.93, 26,875.41 and 12,771.12

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Solution

The fourth proportional to 19,487.93, 26,875.41 and 12,771.12 is: 17,612.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.93 : 26,875.41 = 12,771.12 : x
  2. Step 2: Convert to fraction form
    19,487.93/26,875.41 = 12,771.12/x
  3. Step 3: Cross multiply
    19,487.93x = 26,875.41 × 12,771.12
  4. Step 4: Simplify right side
    19,487.93x = 343,229,086.16
  5. Step 5: Solve for x
    x = 343,229,086.16/19,487.93
  6. Step 6: Final answer
    x = 17,612.39

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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.