Home / 15,393.60-21,242.00-10,079.19

Finding the Fourth Proportional to 15,393.60, 21,242.00 and 10,079.19

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Solution

The fourth proportional to 15,393.60, 21,242.00 and 10,079.19 is: 13,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,393.60 : 21,242.00 = 10,079.19 : x
  2. Step 2: Convert to fraction form
    15,393.60/21,242.00 = 10,079.19/x
  3. Step 3: Cross multiply
    15,393.60x = 21,242.00 × 10,079.19
  4. Step 4: Simplify right side
    15,393.60x = 214,102,103.58
  5. Step 5: Solve for x
    x = 214,102,103.58/15,393.60
  6. Step 6: Final answer
    x = 13,908.51

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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.