Home / 18,300.24-25,254.36-9,916.72

Finding the Fourth Proportional to 18,300.24, 25,254.36 and 9,916.72

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Solution

The fourth proportional to 18,300.24, 25,254.36 and 9,916.72 is: 13,685.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.24 : 25,254.36 = 9,916.72 : x
  2. Step 2: Convert to fraction form
    18,300.24/25,254.36 = 9,916.72/x
  3. Step 3: Cross multiply
    18,300.24x = 25,254.36 × 9,916.72
  4. Step 4: Simplify right side
    18,300.24x = 250,440,416.90
  5. Step 5: Solve for x
    x = 250,440,416.90/18,300.24
  6. Step 6: Final answer
    x = 13,685.09

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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.