Home / 15,561.70-23,342.55-9,721.60

Finding the Fourth Proportional to 15,561.70, 23,342.55 and 9,721.60

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Solution

The fourth proportional to 15,561.70, 23,342.55 and 9,721.60 is: 14,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.70 : 23,342.55 = 9,721.60 : x
  2. Step 2: Convert to fraction form
    15,561.70/23,342.55 = 9,721.60/x
  3. Step 3: Cross multiply
    15,561.70x = 23,342.55 × 9,721.60
  4. Step 4: Simplify right side
    15,561.70x = 226,926,934.08
  5. Step 5: Solve for x
    x = 226,926,934.08/15,561.70
  6. Step 6: Final answer
    x = 14,582.40

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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.