Home / 11,456.34-15,809.47-6,740.92

Finding the Fourth Proportional to 11,456.34, 15,809.47 and 6,740.92

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Solution

The fourth proportional to 11,456.34, 15,809.47 and 6,740.92 is: 9,302.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,456.34 : 15,809.47 = 6,740.92 : x
  2. Step 2: Convert to fraction form
    11,456.34/15,809.47 = 6,740.92/x
  3. Step 3: Cross multiply
    11,456.34x = 15,809.47 × 6,740.92
  4. Step 4: Simplify right side
    11,456.34x = 106,570,372.51
  5. Step 5: Solve for x
    x = 106,570,372.51/11,456.34
  6. Step 6: Final answer
    x = 9,302.31

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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.