Home / 15,326.19-21,148.52-8,612.55

Finding the Fourth Proportional to 15,326.19, 21,148.52 and 8,612.55

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Solution

The fourth proportional to 15,326.19, 21,148.52 and 8,612.55 is: 11,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.19 : 21,148.52 = 8,612.55 : x
  2. Step 2: Convert to fraction form
    15,326.19/21,148.52 = 8,612.55/x
  3. Step 3: Cross multiply
    15,326.19x = 21,148.52 × 8,612.55
  4. Step 4: Simplify right side
    15,326.19x = 182,142,642.86
  5. Step 5: Solve for x
    x = 182,142,642.86/15,326.19
  6. Step 6: Final answer
    x = 11,884.40

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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.