Home / 19,848.65-27,389.09-11,890.67

Finding the Fourth Proportional to 19,848.65, 27,389.09 and 11,890.67

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Solution

The fourth proportional to 19,848.65, 27,389.09 and 11,890.67 is: 16,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,848.65 : 27,389.09 = 11,890.67 : x
  2. Step 2: Convert to fraction form
    19,848.65/27,389.09 = 11,890.67/x
  3. Step 3: Cross multiply
    19,848.65x = 27,389.09 × 11,890.67
  4. Step 4: Simplify right side
    19,848.65x = 325,674,523.57
  5. Step 5: Solve for x
    x = 325,674,523.57/19,848.65
  6. Step 6: Final answer
    x = 16,407.90

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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.