Home / 15,352.40-21,162.48-12,842.84

Finding the Fourth Proportional to 15,352.40, 21,162.48 and 12,842.84

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Solution

The fourth proportional to 15,352.40, 21,162.48 and 12,842.84 is: 17,703.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,352.40 : 21,162.48 = 12,842.84 : x
  2. Step 2: Convert to fraction form
    15,352.40/21,162.48 = 12,842.84/x
  3. Step 3: Cross multiply
    15,352.40x = 21,162.48 × 12,842.84
  4. Step 4: Simplify right side
    15,352.40x = 271,786,344.64
  5. Step 5: Solve for x
    x = 271,786,344.64/15,352.40
  6. Step 6: Final answer
    x = 17,703.18

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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.