Home / 11,534.58-15,918.54-6,430.89

Finding the Fourth Proportional to 11,534.58, 15,918.54 and 6,430.89

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Solution

The fourth proportional to 11,534.58, 15,918.54 and 6,430.89 is: 8,875.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,534.58 : 15,918.54 = 6,430.89 : x
  2. Step 2: Convert to fraction form
    11,534.58/15,918.54 = 6,430.89/x
  3. Step 3: Cross multiply
    11,534.58x = 15,918.54 × 6,430.89
  4. Step 4: Simplify right side
    11,534.58x = 102,370,379.70
  5. Step 5: Solve for x
    x = 102,370,379.70/11,534.58
  6. Step 6: Final answer
    x = 8,875.09

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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.