Home / 9,721.49-13,415.29-5,472.63

Finding the Fourth Proportional to 9,721.49, 13,415.29 and 5,472.63

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Solution

The fourth proportional to 9,721.49, 13,415.29 and 5,472.63 is: 7,552.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.49 : 13,415.29 = 5,472.63 : x
  2. Step 2: Convert to fraction form
    9,721.49/13,415.29 = 5,472.63/x
  3. Step 3: Cross multiply
    9,721.49x = 13,415.29 × 5,472.63
  4. Step 4: Simplify right side
    9,721.49x = 73,416,904.83
  5. Step 5: Solve for x
    x = 73,416,904.83/9,721.49
  6. Step 6: Final answer
    x = 7,552.03

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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.