Home / 15,295.74-21,120.57-12,463.53

Finding the Fourth Proportional to 15,295.74, 21,120.57 and 12,463.53

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Solution

The fourth proportional to 15,295.74, 21,120.57 and 12,463.53 is: 17,209.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.74 : 21,120.57 = 12,463.53 : x
  2. Step 2: Convert to fraction form
    15,295.74/21,120.57 = 12,463.53/x
  3. Step 3: Cross multiply
    15,295.74x = 21,120.57 × 12,463.53
  4. Step 4: Simplify right side
    15,295.74x = 263,236,857.81
  5. Step 5: Solve for x
    x = 263,236,857.81/15,295.74
  6. Step 6: Final answer
    x = 17,209.82

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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.