Home / 15,527.60-21,428.46-8,454.08

Finding the Fourth Proportional to 15,527.60, 21,428.46 and 8,454.08

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Solution

The fourth proportional to 15,527.60, 21,428.46 and 8,454.08 is: 11,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.60 : 21,428.46 = 8,454.08 : x
  2. Step 2: Convert to fraction form
    15,527.60/21,428.46 = 8,454.08/x
  3. Step 3: Cross multiply
    15,527.60x = 21,428.46 × 8,454.08
  4. Step 4: Simplify right side
    15,527.60x = 181,157,915.12
  5. Step 5: Solve for x
    x = 181,157,915.12/15,527.60
  6. Step 6: Final answer
    x = 11,666.83

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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.