Home / 13,302.80-19,954.20-4,547.60

Finding the Fourth Proportional to 13,302.80, 19,954.20 and 4,547.60

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Solution

The fourth proportional to 13,302.80, 19,954.20 and 4,547.60 is: 6,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.80 : 19,954.20 = 4,547.60 : x
  2. Step 2: Convert to fraction form
    13,302.80/19,954.20 = 4,547.60/x
  3. Step 3: Cross multiply
    13,302.80x = 19,954.20 × 4,547.60
  4. Step 4: Simplify right side
    13,302.80x = 90,743,719.92
  5. Step 5: Solve for x
    x = 90,743,719.92/13,302.80
  6. Step 6: Final answer
    x = 6,821.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.