Home / 19,389.26-26,755.70-10,888.67

Finding the Fourth Proportional to 19,389.26, 26,755.70 and 10,888.67

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Solution

The fourth proportional to 19,389.26, 26,755.70 and 10,888.67 is: 15,025.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.26 : 26,755.70 = 10,888.67 : x
  2. Step 2: Convert to fraction form
    19,389.26/26,755.70 = 10,888.67/x
  3. Step 3: Cross multiply
    19,389.26x = 26,755.70 × 10,888.67
  4. Step 4: Simplify right side
    19,389.26x = 291,334,000.36
  5. Step 5: Solve for x
    x = 291,334,000.36/19,389.26
  6. Step 6: Final answer
    x = 15,025.53

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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.