Home / 13,503.34-18,634.18-7,370.81

Finding the Fourth Proportional to 13,503.34, 18,634.18 and 7,370.81

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Solution

The fourth proportional to 13,503.34, 18,634.18 and 7,370.81 is: 10,171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503.34 : 18,634.18 = 7,370.81 : x
  2. Step 2: Convert to fraction form
    13,503.34/18,634.18 = 7,370.81/x
  3. Step 3: Cross multiply
    13,503.34x = 18,634.18 × 7,370.81
  4. Step 4: Simplify right side
    13,503.34x = 137,349,000.29
  5. Step 5: Solve for x
    x = 137,349,000.29/13,503.34
  6. Step 6: Final answer
    x = 10,171.48

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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.