Home / 13,307.74-18,364.38-7,339.66

Finding the Fourth Proportional to 13,307.74, 18,364.38 and 7,339.66

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Solution

The fourth proportional to 13,307.74, 18,364.38 and 7,339.66 is: 10,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.74 : 18,364.38 = 7,339.66 : x
  2. Step 2: Convert to fraction form
    13,307.74/18,364.38 = 7,339.66/x
  3. Step 3: Cross multiply
    13,307.74x = 18,364.38 × 7,339.66
  4. Step 4: Simplify right side
    13,307.74x = 134,788,305.31
  5. Step 5: Solve for x
    x = 134,788,305.31/13,307.74
  6. Step 6: Final answer
    x = 10,128.56

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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.