Home / 11,509.81-15,890.33-10,845.52

Finding the Fourth Proportional to 11,509.81, 15,890.33 and 10,845.52

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Solution

The fourth proportional to 11,509.81, 15,890.33 and 10,845.52 is: 14,973.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,509.81 : 15,890.33 = 10,845.52 : x
  2. Step 2: Convert to fraction form
    11,509.81/15,890.33 = 10,845.52/x
  3. Step 3: Cross multiply
    11,509.81x = 15,890.33 × 10,845.52
  4. Step 4: Simplify right side
    11,509.81x = 172,338,891.82
  5. Step 5: Solve for x
    x = 172,338,891.82/11,509.81
  6. Step 6: Final answer
    x = 14,973.22

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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.