Home / 10,309.04-15,460.80-2,911.76

Finding the Fourth Proportional to 10,309.04, 15,460.80 and 2,911.76

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Solution

The fourth proportional to 10,309.04, 15,460.80 and 2,911.76 is: 4,366.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.04 : 15,460.80 = 2,911.76 : x
  2. Step 2: Convert to fraction form
    10,309.04/15,460.80 = 2,911.76/x
  3. Step 3: Cross multiply
    10,309.04x = 15,460.80 × 2,911.76
  4. Step 4: Simplify right side
    10,309.04x = 45,018,139.01
  5. Step 5: Solve for x
    x = 45,018,139.01/10,309.04
  6. Step 6: Final answer
    x = 4,366.86

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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.