Home / 9,721.36-14,465.33-9,688.56

Finding the Fourth Proportional to 9,721.36, 14,465.33 and 9,688.56

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Solution

The fourth proportional to 9,721.36, 14,465.33 and 9,688.56 is: 14,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.36 : 14,465.33 = 9,688.56 : x
  2. Step 2: Convert to fraction form
    9,721.36/14,465.33 = 9,688.56/x
  3. Step 3: Cross multiply
    9,721.36x = 14,465.33 × 9,688.56
  4. Step 4: Simplify right side
    9,721.36x = 140,148,217.62
  5. Step 5: Solve for x
    x = 140,148,217.62/9,721.36
  6. Step 6: Final answer
    x = 14,416.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.