Home / 13,867.32-19,136.18-7,578.48

Finding the Fourth Proportional to 13,867.32, 19,136.18 and 7,578.48

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Solution

The fourth proportional to 13,867.32, 19,136.18 and 7,578.48 is: 10,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.32 : 19,136.18 = 7,578.48 : x
  2. Step 2: Convert to fraction form
    13,867.32/19,136.18 = 7,578.48/x
  3. Step 3: Cross multiply
    13,867.32x = 19,136.18 × 7,578.48
  4. Step 4: Simplify right side
    13,867.32x = 145,023,157.41
  5. Step 5: Solve for x
    x = 145,023,157.41/13,867.32
  6. Step 6: Final answer
    x = 10,457.91

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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.