Home / 8,555.13-12,809.04-4,386.15

Finding the Fourth Proportional to 8,555.13, 12,809.04 and 4,386.15

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Solution

The fourth proportional to 8,555.13, 12,809.04 and 4,386.15 is: 6,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.13 : 12,809.04 = 4,386.15 : x
  2. Step 2: Convert to fraction form
    8,555.13/12,809.04 = 4,386.15/x
  3. Step 3: Cross multiply
    8,555.13x = 12,809.04 × 4,386.15
  4. Step 4: Simplify right side
    8,555.13x = 56,182,370.80
  5. Step 5: Solve for x
    x = 56,182,370.80/8,555.13
  6. Step 6: Final answer
    x = 6,567.10

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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.