Home / 13,356.68-18,432.39-8,322.93

Finding the Fourth Proportional to 13,356.68, 18,432.39 and 8,322.93

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Solution

The fourth proportional to 13,356.68, 18,432.39 and 8,322.93 is: 11,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.68 : 18,432.39 = 8,322.93 : x
  2. Step 2: Convert to fraction form
    13,356.68/18,432.39 = 8,322.93/x
  3. Step 3: Cross multiply
    13,356.68x = 18,432.39 × 8,322.93
  4. Step 4: Simplify right side
    13,356.68x = 153,411,522.91
  5. Step 5: Solve for x
    x = 153,411,522.91/13,356.68
  6. Step 6: Final answer
    x = 11,485.76

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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.