Home / 7,488.05-10,347.18-6,411.12

Finding the Fourth Proportional to 7,488.05, 10,347.18 and 6,411.12

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Solution

The fourth proportional to 7,488.05, 10,347.18 and 6,411.12 is: 8,859.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.05 : 10,347.18 = 6,411.12 : x
  2. Step 2: Convert to fraction form
    7,488.05/10,347.18 = 6,411.12/x
  3. Step 3: Cross multiply
    7,488.05x = 10,347.18 × 6,411.12
  4. Step 4: Simplify right side
    7,488.05x = 66,336,980.59
  5. Step 5: Solve for x
    x = 66,336,980.59/7,488.05
  6. Step 6: Final answer
    x = 8,859.05

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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.