Home / 11,331.51-15,643.17-7,084.94

Finding the Fourth Proportional to 11,331.51, 15,643.17 and 7,084.94

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Solution

The fourth proportional to 11,331.51, 15,643.17 and 7,084.94 is: 9,780.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.51 : 15,643.17 = 7,084.94 : x
  2. Step 2: Convert to fraction form
    11,331.51/15,643.17 = 7,084.94/x
  3. Step 3: Cross multiply
    11,331.51x = 15,643.17 × 7,084.94
  4. Step 4: Simplify right side
    11,331.51x = 110,830,842.64
  5. Step 5: Solve for x
    x = 110,830,842.64/11,331.51
  6. Step 6: Final answer
    x = 9,780.77

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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.