Home / 13,964.48-19,271.76-7,678.16

Finding the Fourth Proportional to 13,964.48, 19,271.76 and 7,678.16

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Solution

The fourth proportional to 13,964.48, 19,271.76 and 7,678.16 is: 10,596.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.48 : 19,271.76 = 7,678.16 : x
  2. Step 2: Convert to fraction form
    13,964.48/19,271.76 = 7,678.16/x
  3. Step 3: Cross multiply
    13,964.48x = 19,271.76 × 7,678.16
  4. Step 4: Simplify right side
    13,964.48x = 147,971,656.76
  5. Step 5: Solve for x
    x = 147,971,656.76/13,964.48
  6. Step 6: Final answer
    x = 10,596.29

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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.