Home / 9,320.05-12,869.45-6,190.21

Finding the Fourth Proportional to 9,320.05, 12,869.45 and 6,190.21

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Solution

The fourth proportional to 9,320.05, 12,869.45 and 6,190.21 is: 8,547.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.05 : 12,869.45 = 6,190.21 : x
  2. Step 2: Convert to fraction form
    9,320.05/12,869.45 = 6,190.21/x
  3. Step 3: Cross multiply
    9,320.05x = 12,869.45 × 6,190.21
  4. Step 4: Simplify right side
    9,320.05x = 79,664,598.08
  5. Step 5: Solve for x
    x = 79,664,598.08/9,320.05
  6. Step 6: Final answer
    x = 8,547.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.