Home / 10,529.67-14,531.94-7,872.51

Finding the Fourth Proportional to 10,529.67, 14,531.94 and 7,872.51

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Solution

The fourth proportional to 10,529.67, 14,531.94 and 7,872.51 is: 10,864.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,529.67 : 14,531.94 = 7,872.51 : x
  2. Step 2: Convert to fraction form
    10,529.67/14,531.94 = 7,872.51/x
  3. Step 3: Cross multiply
    10,529.67x = 14,531.94 × 7,872.51
  4. Step 4: Simplify right side
    10,529.67x = 114,402,842.97
  5. Step 5: Solve for x
    x = 114,402,842.97/10,529.67
  6. Step 6: Final answer
    x = 10,864.81

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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.