Home / 15,297.74-21,123.33-12,465.53

Finding the Fourth Proportional to 15,297.74, 21,123.33 and 12,465.53

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Solution

The fourth proportional to 15,297.74, 21,123.33 and 12,465.53 is: 17,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.74 : 21,123.33 = 12,465.53 : x
  2. Step 2: Convert to fraction form
    15,297.74/21,123.33 = 12,465.53/x
  3. Step 3: Cross multiply
    15,297.74x = 21,123.33 × 12,465.53
  4. Step 4: Simplify right side
    15,297.74x = 263,313,503.81
  5. Step 5: Solve for x
    x = 263,313,503.81/15,297.74
  6. Step 6: Final answer
    x = 17,212.58

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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.