Home / 13,277.70-18,323.27-7,612.76

Finding the Fourth Proportional to 13,277.70, 18,323.27 and 7,612.76

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Solution

The fourth proportional to 13,277.70, 18,323.27 and 7,612.76 is: 10,505.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.70 : 18,323.27 = 7,612.76 : x
  2. Step 2: Convert to fraction form
    13,277.70/18,323.27 = 7,612.76/x
  3. Step 3: Cross multiply
    13,277.70x = 18,323.27 × 7,612.76
  4. Step 4: Simplify right side
    13,277.70x = 139,490,527.25
  5. Step 5: Solve for x
    x = 139,490,527.25/13,277.70
  6. Step 6: Final answer
    x = 10,505.62

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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.