Home / 19,088.52-28,637.36-7,989.04

Finding the Fourth Proportional to 19,088.52, 28,637.36 and 7,989.04

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Solution

The fourth proportional to 19,088.52, 28,637.36 and 7,989.04 is: 11,985.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,088.52 : 28,637.36 = 7,989.04 : x
  2. Step 2: Convert to fraction form
    19,088.52/28,637.36 = 7,989.04/x
  3. Step 3: Cross multiply
    19,088.52x = 28,637.36 × 7,989.04
  4. Step 4: Simplify right side
    19,088.52x = 228,785,014.53
  5. Step 5: Solve for x
    x = 228,785,014.53/19,088.52
  6. Step 6: Final answer
    x = 11,985.48

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1.5x scale

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.