Home / 15,240.77-21,039.46-11,465.38

Finding the Fourth Proportional to 15,240.77, 21,039.46 and 11,465.38

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Solution

The fourth proportional to 15,240.77, 21,039.46 and 11,465.38 is: 15,827.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.77 : 21,039.46 = 11,465.38 : x
  2. Step 2: Convert to fraction form
    15,240.77/21,039.46 = 11,465.38/x
  3. Step 3: Cross multiply
    15,240.77x = 21,039.46 × 11,465.38
  4. Step 4: Simplify right side
    15,240.77x = 241,225,328.89
  5. Step 5: Solve for x
    x = 241,225,328.89/15,240.77
  6. Step 6: Final answer
    x = 15,827.63

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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.