Home / 13,541.40-18,686.28-7,573.50

Finding the Fourth Proportional to 13,541.40, 18,686.28 and 7,573.50

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Solution

The fourth proportional to 13,541.40, 18,686.28 and 7,573.50 is: 10,450.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.40 : 18,686.28 = 7,573.50 : x
  2. Step 2: Convert to fraction form
    13,541.40/18,686.28 = 7,573.50/x
  3. Step 3: Cross multiply
    13,541.40x = 18,686.28 × 7,573.50
  4. Step 4: Simplify right side
    13,541.40x = 141,520,541.58
  5. Step 5: Solve for x
    x = 141,520,541.58/13,541.40
  6. Step 6: Final answer
    x = 10,450.95

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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.