Home / 13,354.27-18,430.23-7,386.39

Finding the Fourth Proportional to 13,354.27, 18,430.23 and 7,386.39

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Solution

The fourth proportional to 13,354.27, 18,430.23 and 7,386.39 is: 10,193.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.27 : 18,430.23 = 7,386.39 : x
  2. Step 2: Convert to fraction form
    13,354.27/18,430.23 = 7,386.39/x
  3. Step 3: Cross multiply
    13,354.27x = 18,430.23 × 7,386.39
  4. Step 4: Simplify right side
    13,354.27x = 136,132,894.27
  5. Step 5: Solve for x
    x = 136,132,894.27/13,354.27
  6. Step 6: Final answer
    x = 10,193.96

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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.