Home / 15,933.47-22,004.10-13,128.62

Finding the Fourth Proportional to 15,933.47, 22,004.10 and 13,128.62

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Solution

The fourth proportional to 15,933.47, 22,004.10 and 13,128.62 is: 18,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.47 : 22,004.10 = 13,128.62 : x
  2. Step 2: Convert to fraction form
    15,933.47/22,004.10 = 13,128.62/x
  3. Step 3: Cross multiply
    15,933.47x = 22,004.10 × 13,128.62
  4. Step 4: Simplify right side
    15,933.47x = 288,883,357.32
  5. Step 5: Solve for x
    x = 288,883,357.32/15,933.47
  6. Step 6: Final answer
    x = 18,130.60

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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.