Home / 10,290.51-15,421.93-7,504.16

Finding the Fourth Proportional to 10,290.51, 15,421.93 and 7,504.16

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Solution

The fourth proportional to 10,290.51, 15,421.93 and 7,504.16 is: 11,246.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.51 : 15,421.93 = 7,504.16 : x
  2. Step 2: Convert to fraction form
    10,290.51/15,421.93 = 7,504.16/x
  3. Step 3: Cross multiply
    10,290.51x = 15,421.93 × 7,504.16
  4. Step 4: Simplify right side
    10,290.51x = 115,728,534.36
  5. Step 5: Solve for x
    x = 115,728,534.36/10,290.51
  6. Step 6: Final answer
    x = 11,246.14

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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.