Home / 15,557.64-23,336.40-3,870.86

Finding the Fourth Proportional to 15,557.64, 23,336.40 and 3,870.86

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Solution

The fourth proportional to 15,557.64, 23,336.40 and 3,870.86 is: 5,806.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.64 : 23,336.40 = 3,870.86 : x
  2. Step 2: Convert to fraction form
    15,557.64/23,336.40 = 3,870.86/x
  3. Step 3: Cross multiply
    15,557.64x = 23,336.40 × 3,870.86
  4. Step 4: Simplify right side
    15,557.64x = 90,331,937.30
  5. Step 5: Solve for x
    x = 90,331,937.30/15,557.64
  6. Step 6: Final answer
    x = 5,806.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.