Home / 13,545.64-18,694.39-7,803.29

Finding the Fourth Proportional to 13,545.64, 18,694.39 and 7,803.29

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Solution

The fourth proportional to 13,545.64, 18,694.39 and 7,803.29 is: 10,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.64 : 18,694.39 = 7,803.29 : x
  2. Step 2: Convert to fraction form
    13,545.64/18,694.39 = 7,803.29/x
  3. Step 3: Cross multiply
    13,545.64x = 18,694.39 × 7,803.29
  4. Step 4: Simplify right side
    13,545.64x = 145,877,746.54
  5. Step 5: Solve for x
    x = 145,877,746.54/13,545.64
  6. Step 6: Final answer
    x = 10,769.35

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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.