Home / 11,290.79-15,580.58-6,254.70

Finding the Fourth Proportional to 11,290.79, 15,580.58 and 6,254.70

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Solution

The fourth proportional to 11,290.79, 15,580.58 and 6,254.70 is: 8,631.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.79 : 15,580.58 = 6,254.70 : x
  2. Step 2: Convert to fraction form
    11,290.79/15,580.58 = 6,254.70/x
  3. Step 3: Cross multiply
    11,290.79x = 15,580.58 × 6,254.70
  4. Step 4: Simplify right side
    11,290.79x = 97,451,822.45
  5. Step 5: Solve for x
    x = 97,451,822.45/11,290.79
  6. Step 6: Final answer
    x = 8,631.09

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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.