Home / 13,307.67-18,364.42-7,339.21

Finding the Fourth Proportional to 13,307.67, 18,364.42 and 7,339.21

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Solution

The fourth proportional to 13,307.67, 18,364.42 and 7,339.21 is: 10,128.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.67 : 18,364.42 = 7,339.21 : x
  2. Step 2: Convert to fraction form
    13,307.67/18,364.42 = 7,339.21/x
  3. Step 3: Cross multiply
    13,307.67x = 18,364.42 × 7,339.21
  4. Step 4: Simplify right side
    13,307.67x = 134,780,298.17
  5. Step 5: Solve for x
    x = 134,780,298.17/13,307.67
  6. Step 6: Final answer
    x = 10,128.02

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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.