Home / 10,421.75-14,382.02-5,706.03

Finding the Fourth Proportional to 10,421.75, 14,382.02 and 5,706.03

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Solution

The fourth proportional to 10,421.75, 14,382.02 and 5,706.03 is: 7,874.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.75 : 14,382.02 = 5,706.03 : x
  2. Step 2: Convert to fraction form
    10,421.75/14,382.02 = 5,706.03/x
  3. Step 3: Cross multiply
    10,421.75x = 14,382.02 × 5,706.03
  4. Step 4: Simplify right side
    10,421.75x = 82,064,237.58
  5. Step 5: Solve for x
    x = 82,064,237.58/10,421.75
  6. Step 6: Final answer
    x = 7,874.32

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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.