Home / 10,453.20-15,661.53-8,709.41

Finding the Fourth Proportional to 10,453.20, 15,661.53 and 8,709.41

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Solution

The fourth proportional to 10,453.20, 15,661.53 and 8,709.41 is: 13,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,453.20 : 15,661.53 = 8,709.41 : x
  2. Step 2: Convert to fraction form
    10,453.20/15,661.53 = 8,709.41/x
  3. Step 3: Cross multiply
    10,453.20x = 15,661.53 × 8,709.41
  4. Step 4: Simplify right side
    10,453.20x = 136,402,607.69
  5. Step 5: Solve for x
    x = 136,402,607.69/10,453.20
  6. Step 6: Final answer
    x = 13,048.89

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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.