Home / 10,898.40-16,315.20-7,204.80

Finding the Fourth Proportional to 10,898.40, 16,315.20 and 7,204.80

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Solution

The fourth proportional to 10,898.40, 16,315.20 and 7,204.80 is: 10,785.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,898.40 : 16,315.20 = 7,204.80 : x
  2. Step 2: Convert to fraction form
    10,898.40/16,315.20 = 7,204.80/x
  3. Step 3: Cross multiply
    10,898.40x = 16,315.20 × 7,204.80
  4. Step 4: Simplify right side
    10,898.40x = 117,547,752.96
  5. Step 5: Solve for x
    x = 117,547,752.96/10,898.40
  6. Step 6: Final answer
    x = 10,785.78

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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.