Home / 10,518.48-14,502.60-8,521.68

Finding the Fourth Proportional to 10,518.48, 14,502.60 and 8,521.68

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Solution

The fourth proportional to 10,518.48, 14,502.60 and 8,521.68 is: 11,749.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.48 : 14,502.60 = 8,521.68 : x
  2. Step 2: Convert to fraction form
    10,518.48/14,502.60 = 8,521.68/x
  3. Step 3: Cross multiply
    10,518.48x = 14,502.60 × 8,521.68
  4. Step 4: Simplify right side
    10,518.48x = 123,586,516.37
  5. Step 5: Solve for x
    x = 123,586,516.37/10,518.48
  6. Step 6: Final answer
    x = 11,749.47

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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.