Home / 10,140.16-13,962.90-8,154.04

Finding the Fourth Proportional to 10,140.16, 13,962.90 and 8,154.04

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Solution

The fourth proportional to 10,140.16, 13,962.90 and 8,154.04 is: 11,228.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.16 : 13,962.90 = 8,154.04 : x
  2. Step 2: Convert to fraction form
    10,140.16/13,962.90 = 8,154.04/x
  3. Step 3: Cross multiply
    10,140.16x = 13,962.90 × 8,154.04
  4. Step 4: Simplify right side
    10,140.16x = 113,854,045.12
  5. Step 5: Solve for x
    x = 113,854,045.12/10,140.16
  6. Step 6: Final answer
    x = 11,228.03

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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.