Home / 13,509.32-20,266.13-5,718.20

Finding the Fourth Proportional to 13,509.32, 20,266.13 and 5,718.20

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Solution

The fourth proportional to 13,509.32, 20,266.13 and 5,718.20 is: 8,578.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.32 : 20,266.13 = 5,718.20 : x
  2. Step 2: Convert to fraction form
    13,509.32/20,266.13 = 5,718.20/x
  3. Step 3: Cross multiply
    13,509.32x = 20,266.13 × 5,718.20
  4. Step 4: Simplify right side
    13,509.32x = 115,885,697.53
  5. Step 5: Solve for x
    x = 115,885,697.53/13,509.32
  6. Step 6: Final answer
    x = 8,578.21

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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.