Home / 9,869.15-13,618.85-5,392.01

Finding the Fourth Proportional to 9,869.15, 13,618.85 and 5,392.01

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Solution

The fourth proportional to 9,869.15, 13,618.85 and 5,392.01 is: 7,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.15 : 13,618.85 = 5,392.01 : x
  2. Step 2: Convert to fraction form
    9,869.15/13,618.85 = 5,392.01/x
  3. Step 3: Cross multiply
    9,869.15x = 13,618.85 × 5,392.01
  4. Step 4: Simplify right side
    9,869.15x = 73,432,948.43
  5. Step 5: Solve for x
    x = 73,432,948.43/9,869.15
  6. Step 6: Final answer
    x = 7,440.66

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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.