Home / 13,545.05-18,688.56-9,297.41

Finding the Fourth Proportional to 13,545.05, 18,688.56 and 9,297.41

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Solution

The fourth proportional to 13,545.05, 18,688.56 and 9,297.41 is: 12,827.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.05 : 18,688.56 = 9,297.41 : x
  2. Step 2: Convert to fraction form
    13,545.05/18,688.56 = 9,297.41/x
  3. Step 3: Cross multiply
    13,545.05x = 18,688.56 × 9,297.41
  4. Step 4: Simplify right side
    13,545.05x = 173,755,111.19
  5. Step 5: Solve for x
    x = 173,755,111.19/13,545.05
  6. Step 6: Final answer
    x = 12,827.95

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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.