Home / 13,291.58-18,341.70-7,323.13

Finding the Fourth Proportional to 13,291.58, 18,341.70 and 7,323.13

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Solution

The fourth proportional to 13,291.58, 18,341.70 and 7,323.13 is: 10,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.58 : 18,341.70 = 7,323.13 : x
  2. Step 2: Convert to fraction form
    13,291.58/18,341.70 = 7,323.13/x
  3. Step 3: Cross multiply
    13,291.58x = 18,341.70 × 7,323.13
  4. Step 4: Simplify right side
    13,291.58x = 134,318,653.52
  5. Step 5: Solve for x
    x = 134,318,653.52/13,291.58
  6. Step 6: Final answer
    x = 10,105.54

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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.