Home / 15,477.92-21,277.40-13,316.56

Finding the Fourth Proportional to 15,477.92, 21,277.40 and 13,316.56

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Solution

The fourth proportional to 15,477.92, 21,277.40 and 13,316.56 is: 18,306.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.92 : 21,277.40 = 13,316.56 : x
  2. Step 2: Convert to fraction form
    15,477.92/21,277.40 = 13,316.56/x
  3. Step 3: Cross multiply
    15,477.92x = 21,277.40 × 13,316.56
  4. Step 4: Simplify right side
    15,477.92x = 283,341,773.74
  5. Step 5: Solve for x
    x = 283,341,773.74/15,477.92
  6. Step 6: Final answer
    x = 18,306.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.