Home / 18,300.56-25,254.60-9,916.88

Finding the Fourth Proportional to 18,300.56, 25,254.60 and 9,916.88

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Solution

The fourth proportional to 18,300.56, 25,254.60 and 9,916.88 is: 13,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.56 : 25,254.60 = 9,916.88 : x
  2. Step 2: Convert to fraction form
    18,300.56/25,254.60 = 9,916.88/x
  3. Step 3: Cross multiply
    18,300.56x = 25,254.60 × 9,916.88
  4. Step 4: Simplify right side
    18,300.56x = 250,446,837.65
  5. Step 5: Solve for x
    x = 250,446,837.65/18,300.56
  6. Step 6: Final answer
    x = 13,685.20

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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.