Home / 19,740.56-29,587.80-7,251.16

Finding the Fourth Proportional to 19,740.56, 29,587.80 and 7,251.16

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Solution

The fourth proportional to 19,740.56, 29,587.80 and 7,251.16 is: 10,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.56 : 29,587.80 = 7,251.16 : x
  2. Step 2: Convert to fraction form
    19,740.56/29,587.80 = 7,251.16/x
  3. Step 3: Cross multiply
    19,740.56x = 29,587.80 × 7,251.16
  4. Step 4: Simplify right side
    19,740.56x = 214,545,871.85
  5. Step 5: Solve for x
    x = 214,545,871.85/19,740.56
  6. Step 6: Final answer
    x = 10,868.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.