Home / 19,316.48-28,981.20-6,170.72

Finding the Fourth Proportional to 19,316.48, 28,981.20 and 6,170.72

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Solution

The fourth proportional to 19,316.48, 28,981.20 and 6,170.72 is: 9,258.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316.48 : 28,981.20 = 6,170.72 : x
  2. Step 2: Convert to fraction form
    19,316.48/28,981.20 = 6,170.72/x
  3. Step 3: Cross multiply
    19,316.48x = 28,981.20 × 6,170.72
  4. Step 4: Simplify right side
    19,316.48x = 178,834,870.46
  5. Step 5: Solve for x
    x = 178,834,870.46/19,316.48
  6. Step 6: Final answer
    x = 9,258.15

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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.