Home / 9,920.14-13,685.70-6,564.58

Finding the Fourth Proportional to 9,920.14, 13,685.70 and 6,564.58

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Solution

The fourth proportional to 9,920.14, 13,685.70 and 6,564.58 is: 9,056.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.14 : 13,685.70 = 6,564.58 : x
  2. Step 2: Convert to fraction form
    9,920.14/13,685.70 = 6,564.58/x
  3. Step 3: Cross multiply
    9,920.14x = 13,685.70 × 6,564.58
  4. Step 4: Simplify right side
    9,920.14x = 89,840,872.51
  5. Step 5: Solve for x
    x = 89,840,872.51/9,920.14
  6. Step 6: Final answer
    x = 9,056.41

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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.