Home / 19,121.50-26,370.16-12,658.41

Finding the Fourth Proportional to 19,121.50, 26,370.16 and 12,658.41

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Solution

The fourth proportional to 19,121.50, 26,370.16 and 12,658.41 is: 17,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.50 : 26,370.16 = 12,658.41 : x
  2. Step 2: Convert to fraction form
    19,121.50/26,370.16 = 12,658.41/x
  3. Step 3: Cross multiply
    19,121.50x = 26,370.16 × 12,658.41
  4. Step 4: Simplify right side
    19,121.50x = 333,804,265.40
  5. Step 5: Solve for x
    x = 333,804,265.40/19,121.50
  6. Step 6: Final answer
    x = 17,457.01

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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.