Home / 13,352.70-18,427.60-7,384.47

Finding the Fourth Proportional to 13,352.70, 18,427.60 and 7,384.47

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Solution

The fourth proportional to 13,352.70, 18,427.60 and 7,384.47 is: 10,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.70 : 18,427.60 = 7,384.47 : x
  2. Step 2: Convert to fraction form
    13,352.70/18,427.60 = 7,384.47/x
  3. Step 3: Cross multiply
    13,352.70x = 18,427.60 × 7,384.47
  4. Step 4: Simplify right side
    13,352.70x = 136,077,999.50
  5. Step 5: Solve for x
    x = 136,077,999.50/13,352.70
  6. Step 6: Final answer
    x = 10,191.05

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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.