Home / 10,639.71-14,681.79-5,859.60

Finding the Fourth Proportional to 10,639.71, 14,681.79 and 5,859.60

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Solution

The fourth proportional to 10,639.71, 14,681.79 and 5,859.60 is: 8,085.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.71 : 14,681.79 = 5,859.60 : x
  2. Step 2: Convert to fraction form
    10,639.71/14,681.79 = 5,859.60/x
  3. Step 3: Cross multiply
    10,639.71x = 14,681.79 × 5,859.60
  4. Step 4: Simplify right side
    10,639.71x = 86,029,416.68
  5. Step 5: Solve for x
    x = 86,029,416.68/10,639.71
  6. Step 6: Final answer
    x = 8,085.69

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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.