Home / 9,904.85-13,669.02-5,428.98

Finding the Fourth Proportional to 9,904.85, 13,669.02 and 5,428.98

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Solution

The fourth proportional to 9,904.85, 13,669.02 and 5,428.98 is: 7,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904.85 : 13,669.02 = 5,428.98 : x
  2. Step 2: Convert to fraction form
    9,904.85/13,669.02 = 5,428.98/x
  3. Step 3: Cross multiply
    9,904.85x = 13,669.02 × 5,428.98
  4. Step 4: Simplify right side
    9,904.85x = 74,208,836.20
  5. Step 5: Solve for x
    x = 74,208,836.20/9,904.85
  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.