Home / 10,424.59-15,639.81-4,188.98

Finding the Fourth Proportional to 10,424.59, 15,639.81 and 4,188.98

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Solution

The fourth proportional to 10,424.59, 15,639.81 and 4,188.98 is: 6,284.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,424.59 : 15,639.81 = 4,188.98 : x
  2. Step 2: Convert to fraction form
    10,424.59/15,639.81 = 4,188.98/x
  3. Step 3: Cross multiply
    10,424.59x = 15,639.81 × 4,188.98
  4. Step 4: Simplify right side
    10,424.59x = 65,514,851.29
  5. Step 5: Solve for x
    x = 65,514,851.29/10,424.59
  6. Step 6: Final answer
    x = 6,284.65

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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.