Home / 15,430.50-21,272.22-10,964.46

Finding the Fourth Proportional to 15,430.50, 21,272.22 and 10,964.46

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Solution

The fourth proportional to 15,430.50, 21,272.22 and 10,964.46 is: 15,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.50 : 21,272.22 = 10,964.46 : x
  2. Step 2: Convert to fraction form
    15,430.50/21,272.22 = 10,964.46/x
  3. Step 3: Cross multiply
    15,430.50x = 21,272.22 × 10,964.46
  4. Step 4: Simplify right side
    15,430.50x = 233,238,485.07
  5. Step 5: Solve for x
    x = 233,238,485.07/15,430.50
  6. Step 6: Final answer
    x = 15,115.42

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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.