Home / 14,603.40-20,154.78-8,316.36

Finding the Fourth Proportional to 14,603.40, 20,154.78 and 8,316.36

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Solution

The fourth proportional to 14,603.40, 20,154.78 and 8,316.36 is: 11,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,603.40 : 20,154.78 = 8,316.36 : x
  2. Step 2: Convert to fraction form
    14,603.40/20,154.78 = 8,316.36/x
  3. Step 3: Cross multiply
    14,603.40x = 20,154.78 × 8,316.36
  4. Step 4: Simplify right side
    14,603.40x = 167,614,406.20
  5. Step 5: Solve for x
    x = 167,614,406.20/14,603.40
  6. Step 6: Final answer
    x = 11,477.77

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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.