Home / 18,253.95-25,190.48-9,870.45

Finding the Fourth Proportional to 18,253.95, 25,190.48 and 9,870.45

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Solution

The fourth proportional to 18,253.95, 25,190.48 and 9,870.45 is: 13,621.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.95 : 25,190.48 = 9,870.45 : x
  2. Step 2: Convert to fraction form
    18,253.95/25,190.48 = 9,870.45/x
  3. Step 3: Cross multiply
    18,253.95x = 25,190.48 × 9,870.45
  4. Step 4: Simplify right side
    18,253.95x = 248,641,260.99
  5. Step 5: Solve for x
    x = 248,641,260.99/18,253.95
  6. Step 6: Final answer
    x = 13,621.23

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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.