Home / 15,583.32-21,493.62-9,612.81

Finding the Fourth Proportional to 15,583.32, 21,493.62 and 9,612.81

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Solution

The fourth proportional to 15,583.32, 21,493.62 and 9,612.81 is: 13,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.32 : 21,493.62 = 9,612.81 : x
  2. Step 2: Convert to fraction form
    15,583.32/21,493.62 = 9,612.81/x
  3. Step 3: Cross multiply
    15,583.32x = 21,493.62 × 9,612.81
  4. Step 4: Simplify right side
    15,583.32x = 206,614,085.27
  5. Step 5: Solve for x
    x = 206,614,085.27/15,583.32
  6. Step 6: Final answer
    x = 13,258.67

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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.