Home / 15,407.40-21,262.08-8,333.76

Finding the Fourth Proportional to 15,407.40, 21,262.08 and 8,333.76

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Solution

The fourth proportional to 15,407.40, 21,262.08 and 8,333.76 is: 11,500.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.40 : 21,262.08 = 8,333.76 : x
  2. Step 2: Convert to fraction form
    15,407.40/21,262.08 = 8,333.76/x
  3. Step 3: Cross multiply
    15,407.40x = 21,262.08 × 8,333.76
  4. Step 4: Simplify right side
    15,407.40x = 177,193,071.82
  5. Step 5: Solve for x
    x = 177,193,071.82/15,407.40
  6. Step 6: Final answer
    x = 11,500.52

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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.