Home / 14,605.47-20,155.63-8,145.51

Finding the Fourth Proportional to 14,605.47, 20,155.63 and 8,145.51

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Solution

The fourth proportional to 14,605.47, 20,155.63 and 8,145.51 is: 11,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.47 : 20,155.63 = 8,145.51 : x
  2. Step 2: Convert to fraction form
    14,605.47/20,155.63 = 8,145.51/x
  3. Step 3: Cross multiply
    14,605.47x = 20,155.63 × 8,145.51
  4. Step 4: Simplify right side
    14,605.47x = 164,177,885.72
  5. Step 5: Solve for x
    x = 164,177,885.72/14,605.47
  6. Step 6: Final answer
    x = 11,240.85

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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.