Home / 15,496.50-21,388.56-10,191.80

Finding the Fourth Proportional to 15,496.50, 21,388.56 and 10,191.80

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Solution

The fourth proportional to 15,496.50, 21,388.56 and 10,191.80 is: 14,066.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,496.50 : 21,388.56 = 10,191.80 : x
  2. Step 2: Convert to fraction form
    15,496.50/21,388.56 = 10,191.80/x
  3. Step 3: Cross multiply
    15,496.50x = 21,388.56 × 10,191.80
  4. Step 4: Simplify right side
    15,496.50x = 217,987,925.81
  5. Step 5: Solve for x
    x = 217,987,925.81/15,496.50
  6. Step 6: Final answer
    x = 14,066.91

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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.