Home / 12,962.57-19,445.75-6,389.15

Finding the Fourth Proportional to 12,962.57, 19,445.75 and 6,389.15

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Solution

The fourth proportional to 12,962.57, 19,445.75 and 6,389.15 is: 9,584.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962.57 : 19,445.75 = 6,389.15 : x
  2. Step 2: Convert to fraction form
    12,962.57/19,445.75 = 6,389.15/x
  3. Step 3: Cross multiply
    12,962.57x = 19,445.75 × 6,389.15
  4. Step 4: Simplify right side
    12,962.57x = 124,241,781.67
  5. Step 5: Solve for x
    x = 124,241,781.67/12,962.57
  6. Step 6: Final answer
    x = 9,584.66

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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.