Home / 7,389.30-10,204.47-6,320.91

Finding the Fourth Proportional to 7,389.30, 10,204.47 and 6,320.91

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Solution

The fourth proportional to 7,389.30, 10,204.47 and 6,320.91 is: 8,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.30 : 10,204.47 = 6,320.91 : x
  2. Step 2: Convert to fraction form
    7,389.30/10,204.47 = 6,320.91/x
  3. Step 3: Cross multiply
    7,389.30x = 10,204.47 × 6,320.91
  4. Step 4: Simplify right side
    7,389.30x = 64,501,536.47
  5. Step 5: Solve for x
    x = 64,501,536.47/7,389.30
  6. Step 6: Final answer
    x = 8,729.05

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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.