Home / 13,225.48-18,254.32-8,983.60

Finding the Fourth Proportional to 13,225.48, 18,254.32 and 8,983.60

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Solution

The fourth proportional to 13,225.48, 18,254.32 and 8,983.60 is: 12,399.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.48 : 18,254.32 = 8,983.60 : x
  2. Step 2: Convert to fraction form
    13,225.48/18,254.32 = 8,983.60/x
  3. Step 3: Cross multiply
    13,225.48x = 18,254.32 × 8,983.60
  4. Step 4: Simplify right side
    13,225.48x = 163,989,509.15
  5. Step 5: Solve for x
    x = 163,989,509.15/13,225.48
  6. Step 6: Final answer
    x = 12,399.51

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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.