Home / 8,658.04-12,988.68-2,816.32

Finding the Fourth Proportional to 8,658.04, 12,988.68 and 2,816.32

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Solution

The fourth proportional to 8,658.04, 12,988.68 and 2,816.32 is: 4,225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.04 : 12,988.68 = 2,816.32 : x
  2. Step 2: Convert to fraction form
    8,658.04/12,988.68 = 2,816.32/x
  3. Step 3: Cross multiply
    8,658.04x = 12,988.68 × 2,816.32
  4. Step 4: Simplify right side
    8,658.04x = 36,580,279.26
  5. Step 5: Solve for x
    x = 36,580,279.26/8,658.04
  6. Step 6: Final answer
    x = 4,225.01

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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.