Home / 15,739.83-23,642.55-13,279.46

Finding the Fourth Proportional to 15,739.83, 23,642.55 and 13,279.46

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Solution

The fourth proportional to 15,739.83, 23,642.55 and 13,279.46 is: 19,946.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.83 : 23,642.55 = 13,279.46 : x
  2. Step 2: Convert to fraction form
    15,739.83/23,642.55 = 13,279.46/x
  3. Step 3: Cross multiply
    15,739.83x = 23,642.55 × 13,279.46
  4. Step 4: Simplify right side
    15,739.83x = 313,960,178.81
  5. Step 5: Solve for x
    x = 313,960,178.81/15,739.83
  6. Step 6: Final answer
    x = 19,946.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.