Home / 10,988.40-16,506.88-6,608.40

Finding the Fourth Proportional to 10,988.40, 16,506.88 and 6,608.40

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Solution

The fourth proportional to 10,988.40, 16,506.88 and 6,608.40 is: 9,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.40 : 16,506.88 = 6,608.40 : x
  2. Step 2: Convert to fraction form
    10,988.40/16,506.88 = 6,608.40/x
  3. Step 3: Cross multiply
    10,988.40x = 16,506.88 × 6,608.40
  4. Step 4: Simplify right side
    10,988.40x = 109,084,065.79
  5. Step 5: Solve for x
    x = 109,084,065.79/10,988.40
  6. Step 6: Final answer
    x = 9,927.20

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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.