Home / 10,901.02-15,043.80-6,428.62

Finding the Fourth Proportional to 10,901.02, 15,043.80 and 6,428.62

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Solution

The fourth proportional to 10,901.02, 15,043.80 and 6,428.62 is: 8,871.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,901.02 : 15,043.80 = 6,428.62 : x
  2. Step 2: Convert to fraction form
    10,901.02/15,043.80 = 6,428.62/x
  3. Step 3: Cross multiply
    10,901.02x = 15,043.80 × 6,428.62
  4. Step 4: Simplify right side
    10,901.02x = 96,710,873.56
  5. Step 5: Solve for x
    x = 96,710,873.56/10,901.02
  6. Step 6: Final answer
    x = 8,871.73

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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.