Home / 11,279.16-15,570.04-7,032.36

Finding the Fourth Proportional to 11,279.16, 15,570.04 and 7,032.36

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Solution

The fourth proportional to 11,279.16, 15,570.04 and 7,032.36 is: 9,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.16 : 15,570.04 = 7,032.36 : x
  2. Step 2: Convert to fraction form
    11,279.16/15,570.04 = 7,032.36/x
  3. Step 3: Cross multiply
    11,279.16x = 15,570.04 × 7,032.36
  4. Step 4: Simplify right side
    11,279.16x = 109,494,126.49
  5. Step 5: Solve for x
    x = 109,494,126.49/11,279.16
  6. Step 6: Final answer
    x = 9,707.65

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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.