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Finding the Fourth Proportional to 9,713.20, 14,548.20 and 8,417.20

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Solution

The fourth proportional to 9,713.20, 14,548.20 and 8,417.20 is: 12,607.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,713.20 : 14,548.20 = 8,417.20 : x
  2. Step 2: Convert to fraction form
    9,713.20/14,548.20 = 8,417.20/x
  3. Step 3: Cross multiply
    9,713.20x = 14,548.20 × 8,417.20
  4. Step 4: Simplify right side
    9,713.20x = 122,455,109.04
  5. Step 5: Solve for x
    x = 122,455,109.04/9,713.20
  6. Step 6: Final answer
    x = 12,607.08

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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.