Home / 15,335.03-21,160.88-8,963.11

Finding the Fourth Proportional to 15,335.03, 21,160.88 and 8,963.11

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Solution

The fourth proportional to 15,335.03, 21,160.88 and 8,963.11 is: 12,368.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,335.03 : 21,160.88 = 8,963.11 : x
  2. Step 2: Convert to fraction form
    15,335.03/21,160.88 = 8,963.11/x
  3. Step 3: Cross multiply
    15,335.03x = 21,160.88 × 8,963.11
  4. Step 4: Simplify right side
    15,335.03x = 189,667,407.71
  5. Step 5: Solve for x
    x = 189,667,407.71/15,335.03
  6. Step 6: Final answer
    x = 12,368.25

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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.