Home / 13,981.02-20,971.50-9,585.15

Finding the Fourth Proportional to 13,981.02, 20,971.50 and 9,585.15

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Solution

The fourth proportional to 13,981.02, 20,971.50 and 9,585.15 is: 14,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.02 : 20,971.50 = 9,585.15 : x
  2. Step 2: Convert to fraction form
    13,981.02/20,971.50 = 9,585.15/x
  3. Step 3: Cross multiply
    13,981.02x = 20,971.50 × 9,585.15
  4. Step 4: Simplify right side
    13,981.02x = 201,014,973.23
  5. Step 5: Solve for x
    x = 201,014,973.23/13,981.02
  6. Step 6: Final answer
    x = 14,377.70

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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.