Home / 18,971.28-26,180.36-10,587.76

Finding the Fourth Proportional to 18,971.28, 26,180.36 and 10,587.76

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Solution

The fourth proportional to 18,971.28, 26,180.36 and 10,587.76 is: 14,611.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.28 : 26,180.36 = 10,587.76 : x
  2. Step 2: Convert to fraction form
    18,971.28/26,180.36 = 10,587.76/x
  3. Step 3: Cross multiply
    18,971.28x = 26,180.36 × 10,587.76
  4. Step 4: Simplify right side
    18,971.28x = 277,191,368.39
  5. Step 5: Solve for x
    x = 277,191,368.39/18,971.28
  6. Step 6: Final answer
    x = 14,611.11

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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.