Home / 9,938.47-13,713.97-5,690.67

Finding the Fourth Proportional to 9,938.47, 13,713.97 and 5,690.67

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Solution

The fourth proportional to 9,938.47, 13,713.97 and 5,690.67 is: 7,852.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.47 : 13,713.97 = 5,690.67 : x
  2. Step 2: Convert to fraction form
    9,938.47/13,713.97 = 5,690.67/x
  3. Step 3: Cross multiply
    9,938.47x = 13,713.97 × 5,690.67
  4. Step 4: Simplify right side
    9,938.47x = 78,041,677.66
  5. Step 5: Solve for x
    x = 78,041,677.66/9,938.47
  6. Step 6: Final answer
    x = 7,852.48

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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.