Home / 10,615.28-15,917.80-4,453.36

Finding the Fourth Proportional to 10,615.28, 15,917.80 and 4,453.36

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Solution

The fourth proportional to 10,615.28, 15,917.80 and 4,453.36 is: 6,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.28 : 15,917.80 = 4,453.36 : x
  2. Step 2: Convert to fraction form
    10,615.28/15,917.80 = 4,453.36/x
  3. Step 3: Cross multiply
    10,615.28x = 15,917.80 × 4,453.36
  4. Step 4: Simplify right side
    10,615.28x = 70,887,693.81
  5. Step 5: Solve for x
    x = 70,887,693.81/10,615.28
  6. Step 6: Final answer
    x = 6,677.89

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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.