Home / 12,482.10-18,730.58-6,638.76

Finding the Fourth Proportional to 12,482.10, 18,730.58 and 6,638.76

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Solution

The fourth proportional to 12,482.10, 18,730.58 and 6,638.76 is: 9,962.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.10 : 18,730.58 = 6,638.76 : x
  2. Step 2: Convert to fraction form
    12,482.10/18,730.58 = 6,638.76/x
  3. Step 3: Cross multiply
    12,482.10x = 18,730.58 × 6,638.76
  4. Step 4: Simplify right side
    12,482.10x = 124,347,792.09
  5. Step 5: Solve for x
    x = 124,347,792.09/12,482.10
  6. Step 6: Final answer
    x = 9,962.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.