Home / 13,313.02-18,363.83-8,531.36

Finding the Fourth Proportional to 13,313.02, 18,363.83 and 8,531.36

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Solution

The fourth proportional to 13,313.02, 18,363.83 and 8,531.36 is: 11,768.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.02 : 18,363.83 = 8,531.36 : x
  2. Step 2: Convert to fraction form
    13,313.02/18,363.83 = 8,531.36/x
  3. Step 3: Cross multiply
    13,313.02x = 18,363.83 × 8,531.36
  4. Step 4: Simplify right side
    13,313.02x = 156,668,444.71
  5. Step 5: Solve for x
    x = 156,668,444.71/13,313.02
  6. Step 6: Final answer
    x = 11,768.06

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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.