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Finding the Fourth Proportional to 10,000, 15,000 and 4,528

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Solution

The fourth proportional to 10,000, 15,000 and 4,528 is: 6,792

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,000 : 15,000 = 4,528 : x
  2. Step 2: Convert to fraction form
    10,000/15,000 = 4,528/x
  3. Step 3: Cross multiply
    10,000x = 15,000 × 4,528
  4. Step 4: Simplify right side
    10,000x = 67,920,000
  5. Step 5: Solve for x
    x = 67,920,000/10,000
  6. Step 6: Final answer
    x = 6,792

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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.