Home / 8,718.88-12,031.91-4,740.09

Finding the Fourth Proportional to 8,718.88, 12,031.91 and 4,740.09

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Solution

The fourth proportional to 8,718.88, 12,031.91 and 4,740.09 is: 6,541.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.88 : 12,031.91 = 4,740.09 : x
  2. Step 2: Convert to fraction form
    8,718.88/12,031.91 = 4,740.09/x
  3. Step 3: Cross multiply
    8,718.88x = 12,031.91 × 4,740.09
  4. Step 4: Simplify right side
    8,718.88x = 57,032,393.24
  5. Step 5: Solve for x
    x = 57,032,393.24/8,718.88
  6. Step 6: Final answer
    x = 6,541.25

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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.