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Finding the Fourth Proportional to 9,530.80, 14,263.80 and 8,364.40

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Solution

The fourth proportional to 9,530.80, 14,263.80 and 8,364.40 is: 12,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,530.80 : 14,263.80 = 8,364.40 : x
  2. Step 2: Convert to fraction form
    9,530.80/14,263.80 = 8,364.40/x
  3. Step 3: Cross multiply
    9,530.80x = 14,263.80 × 8,364.40
  4. Step 4: Simplify right side
    9,530.80x = 119,308,128.72
  5. Step 5: Solve for x
    x = 119,308,128.72/9,530.80
  6. Step 6: Final answer
    x = 12,518.17

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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.