Home / 13,624.32-18,802.08-8,321.52

Finding the Fourth Proportional to 13,624.32, 18,802.08 and 8,321.52

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Solution

The fourth proportional to 13,624.32, 18,802.08 and 8,321.52 is: 11,484.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.32 : 18,802.08 = 8,321.52 : x
  2. Step 2: Convert to fraction form
    13,624.32/18,802.08 = 8,321.52/x
  3. Step 3: Cross multiply
    13,624.32x = 18,802.08 × 8,321.52
  4. Step 4: Simplify right side
    13,624.32x = 156,461,884.76
  5. Step 5: Solve for x
    x = 156,461,884.76/13,624.32
  6. Step 6: Final answer
    x = 11,484.01

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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.