Home / 14,578.60-21,810.30-13,196.20

Finding the Fourth Proportional to 14,578.60, 21,810.30 and 13,196.20

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Solution

The fourth proportional to 14,578.60, 21,810.30 and 13,196.20 is: 19,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,578.60 : 21,810.30 = 13,196.20 : x
  2. Step 2: Convert to fraction form
    14,578.60/21,810.30 = 13,196.20/x
  3. Step 3: Cross multiply
    14,578.60x = 21,810.30 × 13,196.20
  4. Step 4: Simplify right side
    14,578.60x = 287,813,080.86
  5. Step 5: Solve for x
    x = 287,813,080.86/14,578.60
  6. Step 6: Final answer
    x = 19,742.16

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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.