Home / 13,124.54-18,111.66-7,156.06

Finding the Fourth Proportional to 13,124.54, 18,111.66 and 7,156.06

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Solution

The fourth proportional to 13,124.54, 18,111.66 and 7,156.06 is: 9,875.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.54 : 18,111.66 = 7,156.06 : x
  2. Step 2: Convert to fraction form
    13,124.54/18,111.66 = 7,156.06/x
  3. Step 3: Cross multiply
    13,124.54x = 18,111.66 × 7,156.06
  4. Step 4: Simplify right side
    13,124.54x = 129,608,125.66
  5. Step 5: Solve for x
    x = 129,608,125.66/13,124.54
  6. Step 6: Final answer
    x = 9,875.25

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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.