Home / 13,559.08-18,710.34-7,969

Finding the Fourth Proportional to 13,559.08, 18,710.34 and 7,969

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Solution

The fourth proportional to 13,559.08, 18,710.34 and 7,969 is: 10,996.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.08 : 18,710.34 = 7,969 : x
  2. Step 2: Convert to fraction form
    13,559.08/18,710.34 = 7,969/x
  3. Step 3: Cross multiply
    13,559.08x = 18,710.34 × 7,969
  4. Step 4: Simplify right side
    13,559.08x = 149,102,699.46
  5. Step 5: Solve for x
    x = 149,102,699.46/13,559.08
  6. Step 6: Final answer
    x = 10,996.52

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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.