Home / 8,718.98-12,031.70-4,740.06

Finding the Fourth Proportional to 8,718.98, 12,031.70 and 4,740.06

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Solution

The fourth proportional to 8,718.98, 12,031.70 and 4,740.06 is: 6,541.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.98 : 12,031.70 = 4,740.06 : x
  2. Step 2: Convert to fraction form
    8,718.98/12,031.70 = 4,740.06/x
  3. Step 3: Cross multiply
    8,718.98x = 12,031.70 × 4,740.06
  4. Step 4: Simplify right side
    8,718.98x = 57,030,979.90
  5. Step 5: Solve for x
    x = 57,030,979.90/8,718.98
  6. Step 6: Final answer
    x = 6,541.02

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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.