Home / 13,561.16-20,315.26-9,343.67

Finding the Fourth Proportional to 13,561.16, 20,315.26 and 9,343.67

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Solution

The fourth proportional to 13,561.16, 20,315.26 and 9,343.67 is: 13,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.16 : 20,315.26 = 9,343.67 : x
  2. Step 2: Convert to fraction form
    13,561.16/20,315.26 = 9,343.67/x
  3. Step 3: Cross multiply
    13,561.16x = 20,315.26 × 9,343.67
  4. Step 4: Simplify right side
    13,561.16x = 189,818,971.52
  5. Step 5: Solve for x
    x = 189,818,971.52/13,561.16
  6. Step 6: Final answer
    x = 13,997.25

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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.