Home / 15,296.96-21,117.22-10,259.34

Finding the Fourth Proportional to 15,296.96, 21,117.22 and 10,259.34

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Solution

The fourth proportional to 15,296.96, 21,117.22 and 10,259.34 is: 14,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,296.96 : 21,117.22 = 10,259.34 : x
  2. Step 2: Convert to fraction form
    15,296.96/21,117.22 = 10,259.34/x
  3. Step 3: Cross multiply
    15,296.96x = 21,117.22 × 10,259.34
  4. Step 4: Simplify right side
    15,296.96x = 216,648,739.83
  5. Step 5: Solve for x
    x = 216,648,739.83/15,296.96
  6. Step 6: Final answer
    x = 14,162.86

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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.