Home / 15,457.38-21,330.03-8,650.50

Finding the Fourth Proportional to 15,457.38, 21,330.03 and 8,650.50

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Solution

The fourth proportional to 15,457.38, 21,330.03 and 8,650.50 is: 11,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,457.38 : 21,330.03 = 8,650.50 : x
  2. Step 2: Convert to fraction form
    15,457.38/21,330.03 = 8,650.50/x
  3. Step 3: Cross multiply
    15,457.38x = 21,330.03 × 8,650.50
  4. Step 4: Simplify right side
    15,457.38x = 184,515,424.52
  5. Step 5: Solve for x
    x = 184,515,424.52/15,457.38
  6. Step 6: Final answer
    x = 11,937.05

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Double scale
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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.