Home / 13,247.08-18,278.46-9,001.53

Finding the Fourth Proportional to 13,247.08, 18,278.46 and 9,001.53

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Solution

The fourth proportional to 13,247.08, 18,278.46 and 9,001.53 is: 12,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.08 : 18,278.46 = 9,001.53 : x
  2. Step 2: Convert to fraction form
    13,247.08/18,278.46 = 9,001.53/x
  3. Step 3: Cross multiply
    13,247.08x = 18,278.46 × 9,001.53
  4. Step 4: Simplify right side
    13,247.08x = 164,534,106.04
  5. Step 5: Solve for x
    x = 164,534,106.04/13,247.08
  6. Step 6: Final answer
    x = 12,420.41

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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.