Home / 9,904.98-13,669.36-5,428.92

Finding the Fourth Proportional to 9,904.98, 13,669.36 and 5,428.92

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Solution

The fourth proportional to 9,904.98, 13,669.36 and 5,428.92 is: 7,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904.98 : 13,669.36 = 5,428.92 : x
  2. Step 2: Convert to fraction form
    9,904.98/13,669.36 = 5,428.92/x
  3. Step 3: Cross multiply
    9,904.98x = 13,669.36 × 5,428.92
  4. Step 4: Simplify right side
    9,904.98x = 74,209,899.58
  5. Step 5: Solve for x
    x = 74,209,899.58/9,904.98
  6. Step 6: Final answer
    x = 7,492.18

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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.