Home / 10,784.80-16,167.60-9,618.40

Finding the Fourth Proportional to 10,784.80, 16,167.60 and 9,618.40

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Solution

The fourth proportional to 10,784.80, 16,167.60 and 9,618.40 is: 14,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,784.80 : 16,167.60 = 9,618.40 : x
  2. Step 2: Convert to fraction form
    10,784.80/16,167.60 = 9,618.40/x
  3. Step 3: Cross multiply
    10,784.80x = 16,167.60 × 9,618.40
  4. Step 4: Simplify right side
    10,784.80x = 155,506,443.84
  5. Step 5: Solve for x
    x = 155,506,443.84/10,784.80
  6. Step 6: Final answer
    x = 14,419.04

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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.