Home / 15,703.93-21,690.66-11,742.67

Finding the Fourth Proportional to 15,703.93, 21,690.66 and 11,742.67

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Solution

The fourth proportional to 15,703.93, 21,690.66 and 11,742.67 is: 16,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.93 : 21,690.66 = 11,742.67 : x
  2. Step 2: Convert to fraction form
    15,703.93/21,690.66 = 11,742.67/x
  3. Step 3: Cross multiply
    15,703.93x = 21,690.66 × 11,742.67
  4. Step 4: Simplify right side
    15,703.93x = 254,706,262.46
  5. Step 5: Solve for x
    x = 254,706,262.46/15,703.93
  6. Step 6: Final answer
    x = 16,219.27

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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.