Home / 12,630.18-18,962.40-7,370.58

Finding the Fourth Proportional to 12,630.18, 18,962.40 and 7,370.58

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Solution

The fourth proportional to 12,630.18, 18,962.40 and 7,370.58 is: 11,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.18 : 18,962.40 = 7,370.58 : x
  2. Step 2: Convert to fraction form
    12,630.18/18,962.40 = 7,370.58/x
  3. Step 3: Cross multiply
    12,630.18x = 18,962.40 × 7,370.58
  4. Step 4: Simplify right side
    12,630.18x = 139,763,886.19
  5. Step 5: Solve for x
    x = 139,763,886.19/12,630.18
  6. Step 6: Final answer
    x = 11,065.87

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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.