Home / 13,508.64-18,643.88-9,744.28

Finding the Fourth Proportional to 13,508.64, 18,643.88 and 9,744.28

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Solution

The fourth proportional to 13,508.64, 18,643.88 and 9,744.28 is: 13,448.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.64 : 18,643.88 = 9,744.28 : x
  2. Step 2: Convert to fraction form
    13,508.64/18,643.88 = 9,744.28/x
  3. Step 3: Cross multiply
    13,508.64x = 18,643.88 × 9,744.28
  4. Step 4: Simplify right side
    13,508.64x = 181,671,187.01
  5. Step 5: Solve for x
    x = 181,671,187.01/13,508.64
  6. Step 6: Final answer
    x = 13,448.52

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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.