Home / 15,600.40-21,522.44-9,621.68

Finding the Fourth Proportional to 15,600.40, 21,522.44 and 9,621.68

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Solution

The fourth proportional to 15,600.40, 21,522.44 and 9,621.68 is: 13,274.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.40 : 21,522.44 = 9,621.68 : x
  2. Step 2: Convert to fraction form
    15,600.40/21,522.44 = 9,621.68/x
  3. Step 3: Cross multiply
    15,600.40x = 21,522.44 × 9,621.68
  4. Step 4: Simplify right side
    15,600.40x = 207,082,030.50
  5. Step 5: Solve for x
    x = 207,082,030.50/15,600.40
  6. Step 6: Final answer
    x = 13,274.15

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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.