Home / 13,835.57-19,090.58-7,866.86

Finding the Fourth Proportional to 13,835.57, 19,090.58 and 7,866.86

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Solution

The fourth proportional to 13,835.57, 19,090.58 and 7,866.86 is: 10,854.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.57 : 19,090.58 = 7,866.86 : x
  2. Step 2: Convert to fraction form
    13,835.57/19,090.58 = 7,866.86/x
  3. Step 3: Cross multiply
    13,835.57x = 19,090.58 × 7,866.86
  4. Step 4: Simplify right side
    13,835.57x = 150,182,785.39
  5. Step 5: Solve for x
    x = 150,182,785.39/13,835.57
  6. Step 6: Final answer
    x = 10,854.84

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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.