Home / 14,696.13-20,280.91-7,981.77

Finding the Fourth Proportional to 14,696.13, 20,280.91 and 7,981.77

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Solution

The fourth proportional to 14,696.13, 20,280.91 and 7,981.77 is: 11,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,696.13 : 20,280.91 = 7,981.77 : x
  2. Step 2: Convert to fraction form
    14,696.13/20,280.91 = 7,981.77/x
  3. Step 3: Cross multiply
    14,696.13x = 20,280.91 × 7,981.77
  4. Step 4: Simplify right side
    14,696.13x = 161,877,436.51
  5. Step 5: Solve for x
    x = 161,877,436.51/14,696.13
  6. Step 6: Final answer
    x = 11,014.97

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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.