Home / 13,435.72-18,541.26-7,385.92

Finding the Fourth Proportional to 13,435.72, 18,541.26 and 7,385.92

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Solution

The fourth proportional to 13,435.72, 18,541.26 and 7,385.92 is: 10,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.72 : 18,541.26 = 7,385.92 : x
  2. Step 2: Convert to fraction form
    13,435.72/18,541.26 = 7,385.92/x
  3. Step 3: Cross multiply
    13,435.72x = 18,541.26 × 7,385.92
  4. Step 4: Simplify right side
    13,435.72x = 136,944,263.06
  5. Step 5: Solve for x
    x = 136,944,263.06/13,435.72
  6. Step 6: Final answer
    x = 10,192.55

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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.