Home / 10,421.89-14,382.19-5,706.26

Finding the Fourth Proportional to 10,421.89, 14,382.19 and 5,706.26

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Solution

The fourth proportional to 10,421.89, 14,382.19 and 5,706.26 is: 7,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.89 : 14,382.19 = 5,706.26 : x
  2. Step 2: Convert to fraction form
    10,421.89/14,382.19 = 5,706.26/x
  3. Step 3: Cross multiply
    10,421.89x = 14,382.19 × 5,706.26
  4. Step 4: Simplify right side
    10,421.89x = 82,068,515.51
  5. Step 5: Solve for x
    x = 82,068,515.51/10,421.89
  6. Step 6: Final answer
    x = 7,874.63

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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.