Home / 12,700.04-17,559.48-11,123.60

Finding the Fourth Proportional to 12,700.04, 17,559.48 and 11,123.60

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Solution

The fourth proportional to 12,700.04, 17,559.48 and 11,123.60 is: 15,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.04 : 17,559.48 = 11,123.60 : x
  2. Step 2: Convert to fraction form
    12,700.04/17,559.48 = 11,123.60/x
  3. Step 3: Cross multiply
    12,700.04x = 17,559.48 × 11,123.60
  4. Step 4: Simplify right side
    12,700.04x = 195,324,587.83
  5. Step 5: Solve for x
    x = 195,324,587.83/12,700.04
  6. Step 6: Final answer
    x = 15,379.84

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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.