Home / 10,890.48-15,030.54-6,173.76

Finding the Fourth Proportional to 10,890.48, 15,030.54 and 6,173.76

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Solution

The fourth proportional to 10,890.48, 15,030.54 and 6,173.76 is: 8,520.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.48 : 15,030.54 = 6,173.76 : x
  2. Step 2: Convert to fraction form
    10,890.48/15,030.54 = 6,173.76/x
  3. Step 3: Cross multiply
    10,890.48x = 15,030.54 × 6,173.76
  4. Step 4: Simplify right side
    10,890.48x = 92,794,946.63
  5. Step 5: Solve for x
    x = 92,794,946.63/10,890.48
  6. Step 6: Final answer
    x = 8,520.74

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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.