Home / 19,857.51-29,786.27-9,437.67

Finding the Fourth Proportional to 19,857.51, 29,786.27 and 9,437.67

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Solution

The fourth proportional to 19,857.51, 29,786.27 and 9,437.67 is: 14,156.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.51 : 29,786.27 = 9,437.67 : x
  2. Step 2: Convert to fraction form
    19,857.51/29,786.27 = 9,437.67/x
  3. Step 3: Cross multiply
    19,857.51x = 29,786.27 × 9,437.67
  4. Step 4: Simplify right side
    19,857.51x = 281,112,939.60
  5. Step 5: Solve for x
    x = 281,112,939.60/19,857.51
  6. Step 6: Final answer
    x = 14,156.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.