Home / 13,696.48-18,908.40-10,545.76

Finding the Fourth Proportional to 13,696.48, 18,908.40 and 10,545.76

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Solution

The fourth proportional to 13,696.48, 18,908.40 and 10,545.76 is: 14,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696.48 : 18,908.40 = 10,545.76 : x
  2. Step 2: Convert to fraction form
    13,696.48/18,908.40 = 10,545.76/x
  3. Step 3: Cross multiply
    13,696.48x = 18,908.40 × 10,545.76
  4. Step 4: Simplify right side
    13,696.48x = 199,403,448.38
  5. Step 5: Solve for x
    x = 199,403,448.38/13,696.48
  6. Step 6: Final answer
    x = 14,558.74

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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.