Home / 13,126.99-19,606.80-11,875.67

Finding the Fourth Proportional to 13,126.99, 19,606.80 and 11,875.67

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Solution

The fourth proportional to 13,126.99, 19,606.80 and 11,875.67 is: 17,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.99 : 19,606.80 = 11,875.67 : x
  2. Step 2: Convert to fraction form
    13,126.99/19,606.80 = 11,875.67/x
  3. Step 3: Cross multiply
    13,126.99x = 19,606.80 × 11,875.67
  4. Step 4: Simplify right side
    13,126.99x = 232,843,886.56
  5. Step 5: Solve for x
    x = 232,843,886.56/13,126.99
  6. Step 6: Final answer
    x = 17,737.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.