Home / 19,814.18-27,343.40-10,861.65

Finding the Fourth Proportional to 19,814.18, 27,343.40 and 10,861.65

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Solution

The fourth proportional to 19,814.18, 27,343.40 and 10,861.65 is: 14,988.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.18 : 27,343.40 = 10,861.65 : x
  2. Step 2: Convert to fraction form
    19,814.18/27,343.40 = 10,861.65/x
  3. Step 3: Cross multiply
    19,814.18x = 27,343.40 × 10,861.65
  4. Step 4: Simplify right side
    19,814.18x = 296,994,386.30
  5. Step 5: Solve for x
    x = 296,994,386.30/19,814.18
  6. Step 6: Final answer
    x = 14,988.99

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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.