Home / 13,400.51-18,477.56-8,548.77

Finding the Fourth Proportional to 13,400.51, 18,477.56 and 8,548.77

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Solution

The fourth proportional to 13,400.51, 18,477.56 and 8,548.77 is: 11,787.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.51 : 18,477.56 = 8,548.77 : x
  2. Step 2: Convert to fraction form
    13,400.51/18,477.56 = 8,548.77/x
  3. Step 3: Cross multiply
    13,400.51x = 18,477.56 × 8,548.77
  4. Step 4: Simplify right side
    13,400.51x = 157,960,389.23
  5. Step 5: Solve for x
    x = 157,960,389.23/13,400.51
  6. Step 6: Final answer
    x = 11,787.64

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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.