Home / 13,349.83-18,421.39-7,683.48

Finding the Fourth Proportional to 13,349.83, 18,421.39 and 7,683.48

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Solution

The fourth proportional to 13,349.83, 18,421.39 and 7,683.48 is: 10,602.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.83 : 18,421.39 = 7,683.48 : x
  2. Step 2: Convert to fraction form
    13,349.83/18,421.39 = 7,683.48/x
  3. Step 3: Cross multiply
    13,349.83x = 18,421.39 × 7,683.48
  4. Step 4: Simplify right side
    13,349.83x = 141,540,381.64
  5. Step 5: Solve for x
    x = 141,540,381.64/13,349.83
  6. Step 6: Final answer
    x = 10,602.41

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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.