Home / 10,863.04-14,989.02-6,386.98

Finding the Fourth Proportional to 10,863.04, 14,989.02 and 6,386.98

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Solution

The fourth proportional to 10,863.04, 14,989.02 and 6,386.98 is: 8,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.04 : 14,989.02 = 6,386.98 : x
  2. Step 2: Convert to fraction form
    10,863.04/14,989.02 = 6,386.98/x
  3. Step 3: Cross multiply
    10,863.04x = 14,989.02 × 6,386.98
  4. Step 4: Simplify right side
    10,863.04x = 95,734,570.96
  5. Step 5: Solve for x
    x = 95,734,570.96/10,863.04
  6. Step 6: Final answer
    x = 8,812.87

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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.