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Finding the Fourth Proportional to 15,528, 23,304.96 and 7,320

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Solution

The fourth proportional to 15,528, 23,304.96 and 7,320 is: 10,986.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,528 : 23,304.96 = 7,320 : x
  2. Step 2: Convert to fraction form
    15,528/23,304.96 = 7,320/x
  3. Step 3: Cross multiply
    15,528x = 23,304.96 × 7,320
  4. Step 4: Simplify right side
    15,528x = 170,592,307.20
  5. Step 5: Solve for x
    x = 170,592,307.20/15,528
  6. Step 6: Final answer
    x = 10,986.11

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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.