Home / 7,497.20-10,345.92-4,139.77

Finding the Fourth Proportional to 7,497.20, 10,345.92 and 4,139.77

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Solution

The fourth proportional to 7,497.20, 10,345.92 and 4,139.77 is: 5,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,497.20 : 10,345.92 = 4,139.77 : x
  2. Step 2: Convert to fraction form
    7,497.20/10,345.92 = 4,139.77/x
  3. Step 3: Cross multiply
    7,497.20x = 10,345.92 × 4,139.77
  4. Step 4: Simplify right side
    7,497.20x = 42,829,677.51
  5. Step 5: Solve for x
    x = 42,829,677.51/7,497.20
  6. Step 6: Final answer
    x = 5,712.76

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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.