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Finding the Fourth Proportional to 8,501.40, 12,752.10 and 2,261.40

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Solution

The fourth proportional to 8,501.40, 12,752.10 and 2,261.40 is: 3,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.40 : 12,752.10 = 2,261.40 : x
  2. Step 2: Convert to fraction form
    8,501.40/12,752.10 = 2,261.40/x
  3. Step 3: Cross multiply
    8,501.40x = 12,752.10 × 2,261.40
  4. Step 4: Simplify right side
    8,501.40x = 28,837,598.94
  5. Step 5: Solve for x
    x = 28,837,598.94/8,501.40
  6. Step 6: Final answer
    x = 3,392.10

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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.