Home / 19,351.50-26,710.77-12,638.16

Finding the Fourth Proportional to 19,351.50, 26,710.77 and 12,638.16

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Solution

The fourth proportional to 19,351.50, 26,710.77 and 12,638.16 is: 17,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,351.50 : 26,710.77 = 12,638.16 : x
  2. Step 2: Convert to fraction form
    19,351.50/26,710.77 = 12,638.16/x
  3. Step 3: Cross multiply
    19,351.50x = 26,710.77 × 12,638.16
  4. Step 4: Simplify right side
    19,351.50x = 337,574,984.98
  5. Step 5: Solve for x
    x = 337,574,984.98/19,351.50
  6. Step 6: Final answer
    x = 17,444.38

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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.