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Finding the Fourth Proportional to 11,030.87, 15,228.88 and 7,264.98

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Solution

The fourth proportional to 11,030.87, 15,228.88 and 7,264.98 is: 10,029.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,030.87 : 15,228.88 = 7,264.98 : x
  2. Step 2: Convert to fraction form
    11,030.87/15,228.88 = 7,264.98/x
  3. Step 3: Cross multiply
    11,030.87x = 15,228.88 × 7,264.98
  4. Step 4: Simplify right side
    11,030.87x = 110,637,432.48
  5. Step 5: Solve for x
    x = 110,637,432.48/11,030.87
  6. Step 6: Final answer
    x = 10,029.81

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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.