Home / 15,370.40-21,220.96-12,544.53

Finding the Fourth Proportional to 15,370.40, 21,220.96 and 12,544.53

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Solution

The fourth proportional to 15,370.40, 21,220.96 and 12,544.53 is: 17,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.40 : 21,220.96 = 12,544.53 : x
  2. Step 2: Convert to fraction form
    15,370.40/21,220.96 = 12,544.53/x
  3. Step 3: Cross multiply
    15,370.40x = 21,220.96 × 12,544.53
  4. Step 4: Simplify right side
    15,370.40x = 266,206,863.24
  5. Step 5: Solve for x
    x = 266,206,863.24/15,370.40
  6. Step 6: Final answer
    x = 17,319.45

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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.