Home / 15,411.41-21,267.71-8,697.02

Finding the Fourth Proportional to 15,411.41, 21,267.71 and 8,697.02

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Solution

The fourth proportional to 15,411.41, 21,267.71 and 8,697.02 is: 12,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.41 : 21,267.71 = 8,697.02 : x
  2. Step 2: Convert to fraction form
    15,411.41/21,267.71 = 8,697.02/x
  3. Step 3: Cross multiply
    15,411.41x = 21,267.71 × 8,697.02
  4. Step 4: Simplify right side
    15,411.41x = 184,965,750.57
  5. Step 5: Solve for x
    x = 184,965,750.57/15,411.41
  6. Step 6: Final answer
    x = 12,001.87

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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.