Home / 13,423.19-18,533.27-8,389.67

Finding the Fourth Proportional to 13,423.19, 18,533.27 and 8,389.67

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Solution

The fourth proportional to 13,423.19, 18,533.27 and 8,389.67 is: 11,583.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.19 : 18,533.27 = 8,389.67 : x
  2. Step 2: Convert to fraction form
    13,423.19/18,533.27 = 8,389.67/x
  3. Step 3: Cross multiply
    13,423.19x = 18,533.27 × 8,389.67
  4. Step 4: Simplify right side
    13,423.19x = 155,488,019.32
  5. Step 5: Solve for x
    x = 155,488,019.32/13,423.19
  6. Step 6: Final answer
    x = 11,583.54

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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.