Home / 10,154.84-14,016.21-8,130.35

Finding the Fourth Proportional to 10,154.84, 14,016.21 and 8,130.35

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Solution

The fourth proportional to 10,154.84, 14,016.21 and 8,130.35 is: 11,221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.84 : 14,016.21 = 8,130.35 : x
  2. Step 2: Convert to fraction form
    10,154.84/14,016.21 = 8,130.35/x
  3. Step 3: Cross multiply
    10,154.84x = 14,016.21 × 8,130.35
  4. Step 4: Simplify right side
    10,154.84x = 113,956,692.97
  5. Step 5: Solve for x
    x = 113,956,692.97/10,154.84
  6. Step 6: Final answer
    x = 11,221.91

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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.