Home / 13,210.40-19,817.52-4,443.20

Finding the Fourth Proportional to 13,210.40, 19,817.52 and 4,443.20

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Solution

The fourth proportional to 13,210.40, 19,817.52 and 4,443.20 is: 6,665.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.40 : 19,817.52 = 4,443.20 : x
  2. Step 2: Convert to fraction form
    13,210.40/19,817.52 = 4,443.20/x
  3. Step 3: Cross multiply
    13,210.40x = 19,817.52 × 4,443.20
  4. Step 4: Simplify right side
    13,210.40x = 88,053,204.86
  5. Step 5: Solve for x
    x = 88,053,204.86/13,210.40
  6. Step 6: Final answer
    x = 6,665.45

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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.