Home / 11,320.48-16,966.74-8,211.16

Finding the Fourth Proportional to 11,320.48, 16,966.74 and 8,211.16

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Solution

The fourth proportional to 11,320.48, 16,966.74 and 8,211.16 is: 12,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.48 : 16,966.74 = 8,211.16 : x
  2. Step 2: Convert to fraction form
    11,320.48/16,966.74 = 8,211.16/x
  3. Step 3: Cross multiply
    11,320.48x = 16,966.74 × 8,211.16
  4. Step 4: Simplify right side
    11,320.48x = 139,316,616.82
  5. Step 5: Solve for x
    x = 139,316,616.82/11,320.48
  6. Step 6: Final answer
    x = 12,306.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.