Home / 18,618.10-25,693.10-10,120.24

Finding the Fourth Proportional to 18,618.10, 25,693.10 and 10,120.24

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Solution

The fourth proportional to 18,618.10, 25,693.10 and 10,120.24 is: 13,966.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.10 : 25,693.10 = 10,120.24 : x
  2. Step 2: Convert to fraction form
    18,618.10/25,693.10 = 10,120.24/x
  3. Step 3: Cross multiply
    18,618.10x = 25,693.10 × 10,120.24
  4. Step 4: Simplify right side
    18,618.10x = 260,020,338.34
  5. Step 5: Solve for x
    x = 260,020,338.34/18,618.10
  6. Step 6: Final answer
    x = 13,966.00

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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.