Home / 13,557.92-18,707.78-7,589.84

Finding the Fourth Proportional to 13,557.92, 18,707.78 and 7,589.84

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Solution

The fourth proportional to 13,557.92, 18,707.78 and 7,589.84 is: 10,472.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.92 : 18,707.78 = 7,589.84 : x
  2. Step 2: Convert to fraction form
    13,557.92/18,707.78 = 7,589.84/x
  3. Step 3: Cross multiply
    13,557.92x = 18,707.78 × 7,589.84
  4. Step 4: Simplify right side
    13,557.92x = 141,989,019.01
  5. Step 5: Solve for x
    x = 141,989,019.01/13,557.92
  6. Step 6: Final answer
    x = 10,472.77

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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.