Home / 13,148.74-19,718.85-4,381.30

Finding the Fourth Proportional to 13,148.74, 19,718.85 and 4,381.30

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Solution

The fourth proportional to 13,148.74, 19,718.85 and 4,381.30 is: 6,570.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.74 : 19,718.85 = 4,381.30 : x
  2. Step 2: Convert to fraction form
    13,148.74/19,718.85 = 4,381.30/x
  3. Step 3: Cross multiply
    13,148.74x = 19,718.85 × 4,381.30
  4. Step 4: Simplify right side
    13,148.74x = 86,394,197.51
  5. Step 5: Solve for x
    x = 86,394,197.51/13,148.74
  6. Step 6: Final answer
    x = 6,570.53

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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.