Home / 13,541.18-18,687.23-7,572.72

Finding the Fourth Proportional to 13,541.18, 18,687.23 and 7,572.72

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Solution

The fourth proportional to 13,541.18, 18,687.23 and 7,572.72 is: 10,450.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.18 : 18,687.23 = 7,572.72 : x
  2. Step 2: Convert to fraction form
    13,541.18/18,687.23 = 7,572.72/x
  3. Step 3: Cross multiply
    13,541.18x = 18,687.23 × 7,572.72
  4. Step 4: Simplify right side
    13,541.18x = 141,513,084.60
  5. Step 5: Solve for x
    x = 141,513,084.60/13,541.18
  6. Step 6: Final answer
    x = 10,450.58

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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.