Home / 10,858.74-14,985.63-6,143.46

Finding the Fourth Proportional to 10,858.74, 14,985.63 and 6,143.46

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Solution

The fourth proportional to 10,858.74, 14,985.63 and 6,143.46 is: 8,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.74 : 14,985.63 = 6,143.46 : x
  2. Step 2: Convert to fraction form
    10,858.74/14,985.63 = 6,143.46/x
  3. Step 3: Cross multiply
    10,858.74x = 14,985.63 × 6,143.46
  4. Step 4: Simplify right side
    10,858.74x = 92,063,618.48
  5. Step 5: Solve for x
    x = 92,063,618.48/10,858.74
  6. Step 6: Final answer
    x = 8,478.30

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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.