Home / 11,440.93-15,780.34-10,499.76

Finding the Fourth Proportional to 11,440.93, 15,780.34 and 10,499.76

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Solution

The fourth proportional to 11,440.93, 15,780.34 and 10,499.76 is: 14,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.93 : 15,780.34 = 10,499.76 : x
  2. Step 2: Convert to fraction form
    11,440.93/15,780.34 = 10,499.76/x
  3. Step 3: Cross multiply
    11,440.93x = 15,780.34 × 10,499.76
  4. Step 4: Simplify right side
    11,440.93x = 165,689,782.72
  5. Step 5: Solve for x
    x = 165,689,782.72/11,440.93
  6. Step 6: Final answer
    x = 14,482.20

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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.