Home / 12,609.04-18,913.02-5,211.40

Finding the Fourth Proportional to 12,609.04, 18,913.02 and 5,211.40

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Solution

The fourth proportional to 12,609.04, 18,913.02 and 5,211.40 is: 7,816.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.04 : 18,913.02 = 5,211.40 : x
  2. Step 2: Convert to fraction form
    12,609.04/18,913.02 = 5,211.40/x
  3. Step 3: Cross multiply
    12,609.04x = 18,913.02 × 5,211.40
  4. Step 4: Simplify right side
    12,609.04x = 98,563,312.43
  5. Step 5: Solve for x
    x = 98,563,312.43/12,609.04
  6. Step 6: Final answer
    x = 7,816.88

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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.