Home / 9,864.15-13,611.95-5,387.01

Finding the Fourth Proportional to 9,864.15, 13,611.95 and 5,387.01

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Solution

The fourth proportional to 9,864.15, 13,611.95 and 5,387.01 is: 7,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.15 : 13,611.95 = 5,387.01 : x
  2. Step 2: Convert to fraction form
    9,864.15/13,611.95 = 5,387.01/x
  3. Step 3: Cross multiply
    9,864.15x = 13,611.95 × 5,387.01
  4. Step 4: Simplify right side
    9,864.15x = 73,327,683.83
  5. Step 5: Solve for x
    x = 73,327,683.83/9,864.15
  6. Step 6: Final answer
    x = 7,433.76

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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.