Home / 18,254.18-25,190.76-9,870.68

Finding the Fourth Proportional to 18,254.18, 25,190.76 and 9,870.68

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Solution

The fourth proportional to 18,254.18, 25,190.76 and 9,870.68 is: 13,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.18 : 25,190.76 = 9,870.68 : x
  2. Step 2: Convert to fraction form
    18,254.18/25,190.76 = 9,870.68/x
  3. Step 3: Cross multiply
    18,254.18x = 25,190.76 × 9,870.68
  4. Step 4: Simplify right side
    18,254.18x = 248,649,804.96
  5. Step 5: Solve for x
    x = 248,649,804.96/18,254.18
  6. Step 6: Final answer
    x = 13,621.53

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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.