Home / 11,112.23-15,327.65-7,127.03

Finding the Fourth Proportional to 11,112.23, 15,327.65 and 7,127.03

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Solution

The fourth proportional to 11,112.23, 15,327.65 and 7,127.03 is: 9,830.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.23 : 15,327.65 = 7,127.03 : x
  2. Step 2: Convert to fraction form
    11,112.23/15,327.65 = 7,127.03/x
  3. Step 3: Cross multiply
    11,112.23x = 15,327.65 × 7,127.03
  4. Step 4: Simplify right side
    11,112.23x = 109,240,565.24
  5. Step 5: Solve for x
    x = 109,240,565.24/11,112.23
  6. Step 6: Final answer
    x = 9,830.66

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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.