Home / 18,123.40-25,012.79-10,166.13

Finding the Fourth Proportional to 18,123.40, 25,012.79 and 10,166.13

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Solution

The fourth proportional to 18,123.40, 25,012.79 and 10,166.13 is: 14,030.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.40 : 25,012.79 = 10,166.13 : x
  2. Step 2: Convert to fraction form
    18,123.40/25,012.79 = 10,166.13/x
  3. Step 3: Cross multiply
    18,123.40x = 25,012.79 × 10,166.13
  4. Step 4: Simplify right side
    18,123.40x = 254,283,318.15
  5. Step 5: Solve for x
    x = 254,283,318.15/18,123.40
  6. Step 6: Final answer
    x = 14,030.67

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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.