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Finding the Fourth Proportional to 12,528, 18,792 and 4,320

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Solution

The fourth proportional to 12,528, 18,792 and 4,320 is: 6,480

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528 : 18,792 = 4,320 : x
  2. Step 2: Convert to fraction form
    12,528/18,792 = 4,320/x
  3. Step 3: Cross multiply
    12,528x = 18,792 × 4,320
  4. Step 4: Simplify right side
    12,528x = 81,181,440
  5. Step 5: Solve for x
    x = 81,181,440/12,528
  6. Step 6: Final answer
    x = 6,480

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.