Home / 19,217.50-26,542.02-12,918.94

Finding the Fourth Proportional to 19,217.50, 26,542.02 and 12,918.94

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Solution

The fourth proportional to 19,217.50, 26,542.02 and 12,918.94 is: 17,842.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.50 : 26,542.02 = 12,918.94 : x
  2. Step 2: Convert to fraction form
    19,217.50/26,542.02 = 12,918.94/x
  3. Step 3: Cross multiply
    19,217.50x = 26,542.02 × 12,918.94
  4. Step 4: Simplify right side
    19,217.50x = 342,894,763.86
  5. Step 5: Solve for x
    x = 342,894,763.86/19,217.50
  6. Step 6: Final answer
    x = 17,842.84

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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.