Home / 9,678.48-14,485.32-8,507.76

Finding the Fourth Proportional to 9,678.48, 14,485.32 and 8,507.76

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Solution

The fourth proportional to 9,678.48, 14,485.32 and 8,507.76 is: 12,733.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.48 : 14,485.32 = 8,507.76 : x
  2. Step 2: Convert to fraction form
    9,678.48/14,485.32 = 8,507.76/x
  3. Step 3: Cross multiply
    9,678.48x = 14,485.32 × 8,507.76
  4. Step 4: Simplify right side
    9,678.48x = 123,237,626.08
  5. Step 5: Solve for x
    x = 123,237,626.08/9,678.48
  6. Step 6: Final answer
    x = 12,733.16

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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.