Home / 18,988.22-26,203.64-10,490.92

Finding the Fourth Proportional to 18,988.22, 26,203.64 and 10,490.92

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Solution

The fourth proportional to 18,988.22, 26,203.64 and 10,490.92 is: 14,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.22 : 26,203.64 = 10,490.92 : x
  2. Step 2: Convert to fraction form
    18,988.22/26,203.64 = 10,490.92/x
  3. Step 3: Cross multiply
    18,988.22x = 26,203.64 × 10,490.92
  4. Step 4: Simplify right side
    18,988.22x = 274,900,172.99
  5. Step 5: Solve for x
    x = 274,900,172.99/18,988.22
  6. Step 6: Final answer
    x = 14,477.40

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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.