Home / 13,389.74-20,077.08-5,490.08

Finding the Fourth Proportional to 13,389.74, 20,077.08 and 5,490.08

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Solution

The fourth proportional to 13,389.74, 20,077.08 and 5,490.08 is: 8,232.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.74 : 20,077.08 = 5,490.08 : x
  2. Step 2: Convert to fraction form
    13,389.74/20,077.08 = 5,490.08/x
  3. Step 3: Cross multiply
    13,389.74x = 20,077.08 × 5,490.08
  4. Step 4: Simplify right side
    13,389.74x = 110,224,775.37
  5. Step 5: Solve for x
    x = 110,224,775.37/13,389.74
  6. Step 6: Final answer
    x = 8,232.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.