Home / 10,989.81-16,501.19-9,513.59

Finding the Fourth Proportional to 10,989.81, 16,501.19 and 9,513.59

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Solution

The fourth proportional to 10,989.81, 16,501.19 and 9,513.59 is: 14,284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.81 : 16,501.19 = 9,513.59 : x
  2. Step 2: Convert to fraction form
    10,989.81/16,501.19 = 9,513.59/x
  3. Step 3: Cross multiply
    10,989.81x = 16,501.19 × 9,513.59
  4. Step 4: Simplify right side
    10,989.81x = 156,985,426.10
  5. Step 5: Solve for x
    x = 156,985,426.10/10,989.81
  6. Step 6: Final answer
    x = 14,284.64

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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.