Home / 14,386.60-21,579.90-12,734.20

Finding the Fourth Proportional to 14,386.60, 21,579.90 and 12,734.20

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Solution

The fourth proportional to 14,386.60, 21,579.90 and 12,734.20 is: 19,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.60 : 21,579.90 = 12,734.20 : x
  2. Step 2: Convert to fraction form
    14,386.60/21,579.90 = 12,734.20/x
  3. Step 3: Cross multiply
    14,386.60x = 21,579.90 × 12,734.20
  4. Step 4: Simplify right side
    14,386.60x = 274,802,762.58
  5. Step 5: Solve for x
    x = 274,802,762.58/14,386.60
  6. Step 6: Final answer
    x = 19,101.30

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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.