Home / 13,343.04-19,988.56-8,712

Finding the Fourth Proportional to 13,343.04, 19,988.56 and 8,712

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Solution

The fourth proportional to 13,343.04, 19,988.56 and 8,712 is: 13,051.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.04 : 19,988.56 = 8,712 : x
  2. Step 2: Convert to fraction form
    13,343.04/19,988.56 = 8,712/x
  3. Step 3: Cross multiply
    13,343.04x = 19,988.56 × 8,712
  4. Step 4: Simplify right side
    13,343.04x = 174,140,334.72
  5. Step 5: Solve for x
    x = 174,140,334.72/13,343.04
  6. Step 6: Final answer
    x = 13,051.02

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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.