Home / 16,527.78-22,808.40-9,816.75

Finding the Fourth Proportional to 16,527.78, 22,808.40 and 9,816.75

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Solution

The fourth proportional to 16,527.78, 22,808.40 and 9,816.75 is: 13,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,527.78 : 22,808.40 = 9,816.75 : x
  2. Step 2: Convert to fraction form
    16,527.78/22,808.40 = 9,816.75/x
  3. Step 3: Cross multiply
    16,527.78x = 22,808.40 × 9,816.75
  4. Step 4: Simplify right side
    16,527.78x = 223,904,360.70
  5. Step 5: Solve for x
    x = 223,904,360.70/16,527.78
  6. Step 6: Final answer
    x = 13,547.15

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Half scale
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Double scale
Find fourth proportional to 16,528.78, 22,809.78 and 9,817.75
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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.