Home / 15,148.71-20,904.09-8,433.94

Finding the Fourth Proportional to 15,148.71, 20,904.09 and 8,433.94

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Solution

The fourth proportional to 15,148.71, 20,904.09 and 8,433.94 is: 11,638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148.71 : 20,904.09 = 8,433.94 : x
  2. Step 2: Convert to fraction form
    15,148.71/20,904.09 = 8,433.94/x
  3. Step 3: Cross multiply
    15,148.71x = 20,904.09 × 8,433.94
  4. Step 4: Simplify right side
    15,148.71x = 176,303,840.81
  5. Step 5: Solve for x
    x = 176,303,840.81/15,148.71
  6. Step 6: Final answer
    x = 11,638.21

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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.