Home / 14,985.81-20,671.52-9,683.76

Finding the Fourth Proportional to 14,985.81, 20,671.52 and 9,683.76

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Solution

The fourth proportional to 14,985.81, 20,671.52 and 9,683.76 is: 13,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.81 : 20,671.52 = 9,683.76 : x
  2. Step 2: Convert to fraction form
    14,985.81/20,671.52 = 9,683.76/x
  3. Step 3: Cross multiply
    14,985.81x = 20,671.52 × 9,683.76
  4. Step 4: Simplify right side
    14,985.81x = 200,177,990.10
  5. Step 5: Solve for x
    x = 200,177,990.10/14,985.81
  6. Step 6: Final answer
    x = 13,357.84

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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.