Home / 15,919.55-21,970.28-10,266.06

Finding the Fourth Proportional to 15,919.55, 21,970.28 and 10,266.06

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Solution

The fourth proportional to 15,919.55, 21,970.28 and 10,266.06 is: 14,168.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.55 : 21,970.28 = 10,266.06 : x
  2. Step 2: Convert to fraction form
    15,919.55/21,970.28 = 10,266.06/x
  3. Step 3: Cross multiply
    15,919.55x = 21,970.28 × 10,266.06
  4. Step 4: Simplify right side
    15,919.55x = 225,548,212.70
  5. Step 5: Solve for x
    x = 225,548,212.70/15,919.55
  6. Step 6: Final answer
    x = 14,168.00

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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.