Home / 15,492.64-21,388.68-10,202.80

Finding the Fourth Proportional to 15,492.64, 21,388.68 and 10,202.80

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Solution

The fourth proportional to 15,492.64, 21,388.68 and 10,202.80 is: 14,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,492.64 : 21,388.68 = 10,202.80 : x
  2. Step 2: Convert to fraction form
    15,492.64/21,388.68 = 10,202.80/x
  3. Step 3: Cross multiply
    15,492.64x = 21,388.68 × 10,202.80
  4. Step 4: Simplify right side
    15,492.64x = 218,224,424.30
  5. Step 5: Solve for x
    x = 218,224,424.30/15,492.64
  6. Step 6: Final answer
    x = 14,085.68

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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.