Home / 15,643.50-23,445.81-6,869.58

Finding the Fourth Proportional to 15,643.50, 23,445.81 and 6,869.58

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Solution

The fourth proportional to 15,643.50, 23,445.81 and 6,869.58 is: 10,295.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643.50 : 23,445.81 = 6,869.58 : x
  2. Step 2: Convert to fraction form
    15,643.50/23,445.81 = 6,869.58/x
  3. Step 3: Cross multiply
    15,643.50x = 23,445.81 × 6,869.58
  4. Step 4: Simplify right side
    15,643.50x = 161,062,867.46
  5. Step 5: Solve for x
    x = 161,062,867.46/15,643.50
  6. Step 6: Final answer
    x = 10,295.83

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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.