Home / 19,519.22-26,918.09-12,810.67

Finding the Fourth Proportional to 19,519.22, 26,918.09 and 12,810.67

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Solution

The fourth proportional to 19,519.22, 26,918.09 and 12,810.67 is: 17,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.22 : 26,918.09 = 12,810.67 : x
  2. Step 2: Convert to fraction form
    19,519.22/26,918.09 = 12,810.67/x
  3. Step 3: Cross multiply
    19,519.22x = 26,918.09 × 12,810.67
  4. Step 4: Simplify right side
    19,519.22x = 344,838,684.71
  5. Step 5: Solve for x
    x = 344,838,684.71/19,519.22
  6. Step 6: Final answer
    x = 17,666.62

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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.