Home / 7,875.61-10,867.94-4,338.74

Finding the Fourth Proportional to 7,875.61, 10,867.94 and 4,338.74

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Solution

The fourth proportional to 7,875.61, 10,867.94 and 4,338.74 is: 5,987.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.61 : 10,867.94 = 4,338.74 : x
  2. Step 2: Convert to fraction form
    7,875.61/10,867.94 = 4,338.74/x
  3. Step 3: Cross multiply
    7,875.61x = 10,867.94 × 4,338.74
  4. Step 4: Simplify right side
    7,875.61x = 47,153,144.30
  5. Step 5: Solve for x
    x = 47,153,144.30/7,875.61
  6. Step 6: Final answer
    x = 5,987.24

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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.