Home / 10,919.80-16,368.90-4,337.20

Finding the Fourth Proportional to 10,919.80, 16,368.90 and 4,337.20

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Solution

The fourth proportional to 10,919.80, 16,368.90 and 4,337.20 is: 6,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.80 : 16,368.90 = 4,337.20 : x
  2. Step 2: Convert to fraction form
    10,919.80/16,368.90 = 4,337.20/x
  3. Step 3: Cross multiply
    10,919.80x = 16,368.90 × 4,337.20
  4. Step 4: Simplify right side
    10,919.80x = 70,995,193.08
  5. Step 5: Solve for x
    x = 70,995,193.08/10,919.80
  6. Step 6: Final answer
    x = 6,501.51

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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.