Home / 13,308.03-18,366.48-8,830.13

Finding the Fourth Proportional to 13,308.03, 18,366.48 and 8,830.13

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Solution

The fourth proportional to 13,308.03, 18,366.48 and 8,830.13 is: 12,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.03 : 18,366.48 = 8,830.13 : x
  2. Step 2: Convert to fraction form
    13,308.03/18,366.48 = 8,830.13/x
  3. Step 3: Cross multiply
    13,308.03x = 18,366.48 × 8,830.13
  4. Step 4: Simplify right side
    13,308.03x = 162,178,314.21
  5. Step 5: Solve for x
    x = 162,178,314.21/13,308.03
  6. Step 6: Final answer
    x = 12,186.50

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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.