Home / 13,079.93-19,621.88-5,288.45

Finding the Fourth Proportional to 13,079.93, 19,621.88 and 5,288.45

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Solution

The fourth proportional to 13,079.93, 19,621.88 and 5,288.45 is: 7,933.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.93 : 19,621.88 = 5,288.45 : x
  2. Step 2: Convert to fraction form
    13,079.93/19,621.88 = 5,288.45/x
  3. Step 3: Cross multiply
    13,079.93x = 19,621.88 × 5,288.45
  4. Step 4: Simplify right side
    13,079.93x = 103,769,331.29
  5. Step 5: Solve for x
    x = 103,769,331.29/13,079.93
  6. Step 6: Final answer
    x = 7,933.48

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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.