Home / 10,913.40-16,337.70-7,219.80

Finding the Fourth Proportional to 10,913.40, 16,337.70 and 7,219.80

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Solution

The fourth proportional to 10,913.40, 16,337.70 and 7,219.80 is: 10,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.40 : 16,337.70 = 7,219.80 : x
  2. Step 2: Convert to fraction form
    10,913.40/16,337.70 = 7,219.80/x
  3. Step 3: Cross multiply
    10,913.40x = 16,337.70 × 7,219.80
  4. Step 4: Simplify right side
    10,913.40x = 117,954,926.46
  5. Step 5: Solve for x
    x = 117,954,926.46/10,913.40
  6. Step 6: Final answer
    x = 10,808.27

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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.