Home / 13,085.19-18,059.30-7,782.93

Finding the Fourth Proportional to 13,085.19, 18,059.30 and 7,782.93

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Solution

The fourth proportional to 13,085.19, 18,059.30 and 7,782.93 is: 10,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.19 : 18,059.30 = 7,782.93 : x
  2. Step 2: Convert to fraction form
    13,085.19/18,059.30 = 7,782.93/x
  3. Step 3: Cross multiply
    13,085.19x = 18,059.30 × 7,782.93
  4. Step 4: Simplify right side
    13,085.19x = 140,554,267.75
  5. Step 5: Solve for x
    x = 140,554,267.75/13,085.19
  6. Step 6: Final answer
    x = 10,741.48

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Half scale
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Double scale
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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.