Home / 13,307.23-18,364.81-7,338.89

Finding the Fourth Proportional to 13,307.23, 18,364.81 and 7,338.89

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Solution

The fourth proportional to 13,307.23, 18,364.81 and 7,338.89 is: 10,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.23 : 18,364.81 = 7,338.89 : x
  2. Step 2: Convert to fraction form
    13,307.23/18,364.81 = 7,338.89/x
  3. Step 3: Cross multiply
    13,307.23x = 18,364.81 × 7,338.89
  4. Step 4: Simplify right side
    13,307.23x = 134,777,348.03
  5. Step 5: Solve for x
    x = 134,777,348.03/13,307.23
  6. Step 6: Final answer
    x = 10,128.13

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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.