Home / 18,653.36-25,740.80-10,155.52

Finding the Fourth Proportional to 18,653.36, 25,740.80 and 10,155.52

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Solution

The fourth proportional to 18,653.36, 25,740.80 and 10,155.52 is: 14,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.36 : 25,740.80 = 10,155.52 : x
  2. Step 2: Convert to fraction form
    18,653.36/25,740.80 = 10,155.52/x
  3. Step 3: Cross multiply
    18,653.36x = 25,740.80 × 10,155.52
  4. Step 4: Simplify right side
    18,653.36x = 261,411,209.22
  5. Step 5: Solve for x
    x = 261,411,209.22/18,653.36
  6. Step 6: Final answer
    x = 14,014.16

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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.