Home / 10,421.84-14,382.48-5,706.22

Finding the Fourth Proportional to 10,421.84, 14,382.48 and 5,706.22

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Solution

The fourth proportional to 10,421.84, 14,382.48 and 5,706.22 is: 7,874.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.84 : 14,382.48 = 5,706.22 : x
  2. Step 2: Convert to fraction form
    10,421.84/14,382.48 = 5,706.22/x
  3. Step 3: Cross multiply
    10,421.84x = 14,382.48 × 5,706.22
  4. Step 4: Simplify right side
    10,421.84x = 82,069,595.03
  5. Step 5: Solve for x
    x = 82,069,595.03/10,421.84
  6. Step 6: Final answer
    x = 7,874.77

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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.