Home / 7,875.36-10,867.92-4,338.60

Finding the Fourth Proportional to 7,875.36, 10,867.92 and 4,338.60

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Solution

The fourth proportional to 7,875.36, 10,867.92 and 4,338.60 is: 5,987.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.36 : 10,867.92 = 4,338.60 : x
  2. Step 2: Convert to fraction form
    7,875.36/10,867.92 = 4,338.60/x
  3. Step 3: Cross multiply
    7,875.36x = 10,867.92 × 4,338.60
  4. Step 4: Simplify right side
    7,875.36x = 47,151,557.71
  5. Step 5: Solve for x
    x = 47,151,557.71/7,875.36
  6. Step 6: Final answer
    x = 5,987.23

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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.