Home / 11,009.98-15,182.40-7,656.58

Finding the Fourth Proportional to 11,009.98, 15,182.40 and 7,656.58

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Solution

The fourth proportional to 11,009.98, 15,182.40 and 7,656.58 is: 10,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.98 : 15,182.40 = 7,656.58 : x
  2. Step 2: Convert to fraction form
    11,009.98/15,182.40 = 7,656.58/x
  3. Step 3: Cross multiply
    11,009.98x = 15,182.40 × 7,656.58
  4. Step 4: Simplify right side
    11,009.98x = 116,245,260.19
  5. Step 5: Solve for x
    x = 116,245,260.19/11,009.98
  6. Step 6: Final answer
    x = 10,558.17

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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.