Home / 18,985.80-26,200.32-11,032.68

Finding the Fourth Proportional to 18,985.80, 26,200.32 and 11,032.68

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Solution

The fourth proportional to 18,985.80, 26,200.32 and 11,032.68 is: 15,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.80 : 26,200.32 = 11,032.68 : x
  2. Step 2: Convert to fraction form
    18,985.80/26,200.32 = 11,032.68/x
  3. Step 3: Cross multiply
    18,985.80x = 26,200.32 × 11,032.68
  4. Step 4: Simplify right side
    18,985.80x = 289,059,746.46
  5. Step 5: Solve for x
    x = 289,059,746.46/18,985.80
  6. Step 6: Final answer
    x = 15,225.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.