Home / 13,316.22-18,370.80-9,339.93

Finding the Fourth Proportional to 13,316.22, 18,370.80 and 9,339.93

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Solution

The fourth proportional to 13,316.22, 18,370.80 and 9,339.93 is: 12,885.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.22 : 18,370.80 = 9,339.93 : x
  2. Step 2: Convert to fraction form
    13,316.22/18,370.80 = 9,339.93/x
  3. Step 3: Cross multiply
    13,316.22x = 18,370.80 × 9,339.93
  4. Step 4: Simplify right side
    13,316.22x = 171,581,986.04
  5. Step 5: Solve for x
    x = 171,581,986.04/13,316.22
  6. Step 6: Final answer
    x = 12,885.19

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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.