Home / 12,085.13-18,125.57-5,509.76

Finding the Fourth Proportional to 12,085.13, 18,125.57 and 5,509.76

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Solution

The fourth proportional to 12,085.13, 18,125.57 and 5,509.76 is: 8,263.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.13 : 18,125.57 = 5,509.76 : x
  2. Step 2: Convert to fraction form
    12,085.13/18,125.57 = 5,509.76/x
  3. Step 3: Cross multiply
    12,085.13x = 18,125.57 × 5,509.76
  4. Step 4: Simplify right side
    12,085.13x = 99,867,463.71
  5. Step 5: Solve for x
    x = 99,867,463.71/12,085.13
  6. Step 6: Final answer
    x = 8,263.66

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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.