Home / 13,266.96-18,308.16-8,559.60

Finding the Fourth Proportional to 13,266.96, 18,308.16 and 8,559.60

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Solution

The fourth proportional to 13,266.96, 18,308.16 and 8,559.60 is: 11,812.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.96 : 18,308.16 = 8,559.60 : x
  2. Step 2: Convert to fraction form
    13,266.96/18,308.16 = 8,559.60/x
  3. Step 3: Cross multiply
    13,266.96x = 18,308.16 × 8,559.60
  4. Step 4: Simplify right side
    13,266.96x = 156,710,526.34
  5. Step 5: Solve for x
    x = 156,710,526.34/13,266.96
  6. Step 6: Final answer
    x = 11,812.09

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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.