Home / 9,203.40-12,701.21-5,428.79

Finding the Fourth Proportional to 9,203.40, 12,701.21 and 5,428.79

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Solution

The fourth proportional to 9,203.40, 12,701.21 and 5,428.79 is: 7,492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,203.40 : 12,701.21 = 5,428.79 : x
  2. Step 2: Convert to fraction form
    9,203.40/12,701.21 = 5,428.79/x
  3. Step 3: Cross multiply
    9,203.40x = 12,701.21 × 5,428.79
  4. Step 4: Simplify right side
    9,203.40x = 68,952,111.19
  5. Step 5: Solve for x
    x = 68,952,111.19/9,203.40
  6. Step 6: Final answer
    x = 7,492.03

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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.