Home / 19,484.40-26,890.96-12,775.68

Finding the Fourth Proportional to 19,484.40, 26,890.96 and 12,775.68

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Solution

The fourth proportional to 19,484.40, 26,890.96 and 12,775.68 is: 17,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,484.40 : 26,890.96 = 12,775.68 : x
  2. Step 2: Convert to fraction form
    19,484.40/26,890.96 = 12,775.68/x
  3. Step 3: Cross multiply
    19,484.40x = 26,890.96 × 12,775.68
  4. Step 4: Simplify right side
    19,484.40x = 343,550,299.85
  5. Step 5: Solve for x
    x = 343,550,299.85/19,484.40
  6. Step 6: Final answer
    x = 17,632.07

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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.