Home / 14,135.60-21,203.40-13,916.90

Finding the Fourth Proportional to 14,135.60, 21,203.40 and 13,916.90

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Solution

The fourth proportional to 14,135.60, 21,203.40 and 13,916.90 is: 20,875.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.60 : 21,203.40 = 13,916.90 : x
  2. Step 2: Convert to fraction form
    14,135.60/21,203.40 = 13,916.90/x
  3. Step 3: Cross multiply
    14,135.60x = 21,203.40 × 13,916.90
  4. Step 4: Simplify right side
    14,135.60x = 295,085,597.46
  5. Step 5: Solve for x
    x = 295,085,597.46/14,135.60
  6. Step 6: Final answer
    x = 20,875.35

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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.