Home / 13,541.72-18,687.12-7,574.06

Finding the Fourth Proportional to 13,541.72, 18,687.12 and 7,574.06

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Solution

The fourth proportional to 13,541.72, 18,687.12 and 7,574.06 is: 10,451.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.72 : 18,687.12 = 7,574.06 : x
  2. Step 2: Convert to fraction form
    13,541.72/18,687.12 = 7,574.06/x
  3. Step 3: Cross multiply
    13,541.72x = 18,687.12 × 7,574.06
  4. Step 4: Simplify right side
    13,541.72x = 141,537,368.11
  5. Step 5: Solve for x
    x = 141,537,368.11/13,541.72
  6. Step 6: Final answer
    x = 10,451.95

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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.