Home / 15,674.85-21,609.29-13,275.23

Finding the Fourth Proportional to 15,674.85, 21,609.29 and 13,275.23

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Solution

The fourth proportional to 15,674.85, 21,609.29 and 13,275.23 is: 18,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,674.85 : 21,609.29 = 13,275.23 : x
  2. Step 2: Convert to fraction form
    15,674.85/21,609.29 = 13,275.23/x
  3. Step 3: Cross multiply
    15,674.85x = 21,609.29 × 13,275.23
  4. Step 4: Simplify right side
    15,674.85x = 286,868,220.03
  5. Step 5: Solve for x
    x = 286,868,220.03/15,674.85
  6. Step 6: Final answer
    x = 18,301.18

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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.