Home / 8,637.47-12,955.65-3,090.52

Finding the Fourth Proportional to 8,637.47, 12,955.65 and 3,090.52

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Solution

The fourth proportional to 8,637.47, 12,955.65 and 3,090.52 is: 4,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.47 : 12,955.65 = 3,090.52 : x
  2. Step 2: Convert to fraction form
    8,637.47/12,955.65 = 3,090.52/x
  3. Step 3: Cross multiply
    8,637.47x = 12,955.65 × 3,090.52
  4. Step 4: Simplify right side
    8,637.47x = 40,039,700.04
  5. Step 5: Solve for x
    x = 40,039,700.04/8,637.47
  6. Step 6: Final answer
    x = 4,635.58

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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.