Home / 15,412.60-21,269.28-9,043.03

Finding the Fourth Proportional to 15,412.60, 21,269.28 and 9,043.03

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Solution

The fourth proportional to 15,412.60, 21,269.28 and 9,043.03 is: 12,479.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.60 : 21,269.28 = 9,043.03 : x
  2. Step 2: Convert to fraction form
    15,412.60/21,269.28 = 9,043.03/x
  3. Step 3: Cross multiply
    15,412.60x = 21,269.28 × 9,043.03
  4. Step 4: Simplify right side
    15,412.60x = 192,338,737.12
  5. Step 5: Solve for x
    x = 192,338,737.12/15,412.60
  6. Step 6: Final answer
    x = 12,479.32

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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.