Home / 15,580.86-21,494.11-11,325.32

Finding the Fourth Proportional to 15,580.86, 21,494.11 and 11,325.32

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Solution

The fourth proportional to 15,580.86, 21,494.11 and 11,325.32 is: 15,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580.86 : 21,494.11 = 11,325.32 : x
  2. Step 2: Convert to fraction form
    15,580.86/21,494.11 = 11,325.32/x
  3. Step 3: Cross multiply
    15,580.86x = 21,494.11 × 11,325.32
  4. Step 4: Simplify right side
    15,580.86x = 243,427,639.92
  5. Step 5: Solve for x
    x = 243,427,639.92/15,580.86
  6. Step 6: Final answer
    x = 15,623.51

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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.