Home / 12,543.48-18,815.40-5,970.36

Finding the Fourth Proportional to 12,543.48, 18,815.40 and 5,970.36

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Solution

The fourth proportional to 12,543.48, 18,815.40 and 5,970.36 is: 8,955.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.48 : 18,815.40 = 5,970.36 : x
  2. Step 2: Convert to fraction form
    12,543.48/18,815.40 = 5,970.36/x
  3. Step 3: Cross multiply
    12,543.48x = 18,815.40 × 5,970.36
  4. Step 4: Simplify right side
    12,543.48x = 112,334,711.54
  5. Step 5: Solve for x
    x = 112,334,711.54/12,543.48
  6. Step 6: Final answer
    x = 8,955.63

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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.