Home / 8,555.04-12,826.80-4,389.84

Finding the Fourth Proportional to 8,555.04, 12,826.80 and 4,389.84

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Solution

The fourth proportional to 8,555.04, 12,826.80 and 4,389.84 is: 6,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.04 : 12,826.80 = 4,389.84 : x
  2. Step 2: Convert to fraction form
    8,555.04/12,826.80 = 4,389.84/x
  3. Step 3: Cross multiply
    8,555.04x = 12,826.80 × 4,389.84
  4. Step 4: Simplify right side
    8,555.04x = 56,307,599.71
  5. Step 5: Solve for x
    x = 56,307,599.71/8,555.04
  6. Step 6: Final answer
    x = 6,581.80

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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.