Home / 15,491.20-23,220.55-7,582.81

Finding the Fourth Proportional to 15,491.20, 23,220.55 and 7,582.81

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Solution

The fourth proportional to 15,491.20, 23,220.55 and 7,582.81 is: 11,366.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491.20 : 23,220.55 = 7,582.81 : x
  2. Step 2: Convert to fraction form
    15,491.20/23,220.55 = 7,582.81/x
  3. Step 3: Cross multiply
    15,491.20x = 23,220.55 × 7,582.81
  4. Step 4: Simplify right side
    15,491.20x = 176,077,018.75
  5. Step 5: Solve for x
    x = 176,077,018.75/15,491.20
  6. Step 6: Final answer
    x = 11,366.26

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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.