Home / 14,390.64-21,580.27-6,992.91

Finding the Fourth Proportional to 14,390.64, 21,580.27 and 6,992.91

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Solution

The fourth proportional to 14,390.64, 21,580.27 and 6,992.91 is: 10,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.64 : 21,580.27 = 6,992.91 : x
  2. Step 2: Convert to fraction form
    14,390.64/21,580.27 = 6,992.91/x
  3. Step 3: Cross multiply
    14,390.64x = 21,580.27 × 6,992.91
  4. Step 4: Simplify right side
    14,390.64x = 150,908,885.89
  5. Step 5: Solve for x
    x = 150,908,885.89/14,390.64
  6. Step 6: Final answer
    x = 10,486.60

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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.