Home / 11,985.17-17,962.16-4,957.20

Finding the Fourth Proportional to 11,985.17, 17,962.16 and 4,957.20

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Solution

The fourth proportional to 11,985.17, 17,962.16 and 4,957.20 is: 7,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.17 : 17,962.16 = 4,957.20 : x
  2. Step 2: Convert to fraction form
    11,985.17/17,962.16 = 4,957.20/x
  3. Step 3: Cross multiply
    11,985.17x = 17,962.16 × 4,957.20
  4. Step 4: Simplify right side
    11,985.17x = 89,041,994.77
  5. Step 5: Solve for x
    x = 89,041,994.77/11,985.17
  6. Step 6: Final answer
    x = 7,429.35

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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.