Home / 15,523.70-21,411.15-9,853.52

Finding the Fourth Proportional to 15,523.70, 21,411.15 and 9,853.52

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Solution

The fourth proportional to 15,523.70, 21,411.15 and 9,853.52 is: 13,590.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.70 : 21,411.15 = 9,853.52 : x
  2. Step 2: Convert to fraction form
    15,523.70/21,411.15 = 9,853.52/x
  3. Step 3: Cross multiply
    15,523.70x = 21,411.15 × 9,853.52
  4. Step 4: Simplify right side
    15,523.70x = 210,975,194.75
  5. Step 5: Solve for x
    x = 210,975,194.75/15,523.70
  6. Step 6: Final answer
    x = 13,590.52

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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.