Home / 15,411.17-21,267.96-8,696.41

Finding the Fourth Proportional to 15,411.17, 21,267.96 and 8,696.41

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Solution

The fourth proportional to 15,411.17, 21,267.96 and 8,696.41 is: 12,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.17 : 21,267.96 = 8,696.41 : x
  2. Step 2: Convert to fraction form
    15,411.17/21,267.96 = 8,696.41/x
  3. Step 3: Cross multiply
    15,411.17x = 21,267.96 × 8,696.41
  4. Step 4: Simplify right side
    15,411.17x = 184,954,900.02
  5. Step 5: Solve for x
    x = 184,954,900.02/15,411.17
  6. Step 6: Final answer
    x = 12,001.35

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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.