Home / 9,937.80-13,712.85-5,688.36

Finding the Fourth Proportional to 9,937.80, 13,712.85 and 5,688.36

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Solution

The fourth proportional to 9,937.80, 13,712.85 and 5,688.36 is: 7,849.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,937.80 : 13,712.85 = 5,688.36 : x
  2. Step 2: Convert to fraction form
    9,937.80/13,712.85 = 5,688.36/x
  3. Step 3: Cross multiply
    9,937.80x = 13,712.85 × 5,688.36
  4. Step 4: Simplify right side
    9,937.80x = 78,003,627.43
  5. Step 5: Solve for x
    x = 78,003,627.43/9,937.80
  6. Step 6: Final answer
    x = 7,849.18

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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.