Home / 13,903.10-19,186.34-7,615.47

Finding the Fourth Proportional to 13,903.10, 19,186.34 and 7,615.47

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Solution

The fourth proportional to 13,903.10, 19,186.34 and 7,615.47 is: 10,509.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.10 : 19,186.34 = 7,615.47 : x
  2. Step 2: Convert to fraction form
    13,903.10/19,186.34 = 7,615.47/x
  3. Step 3: Cross multiply
    13,903.10x = 19,186.34 × 7,615.47
  4. Step 4: Simplify right side
    13,903.10x = 146,112,958.60
  5. Step 5: Solve for x
    x = 146,112,958.60/13,903.10
  6. Step 6: Final answer
    x = 10,509.38

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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.