Home / 15,267.08-21,071.90-8,894.71

Finding the Fourth Proportional to 15,267.08, 21,071.90 and 8,894.71

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Solution

The fourth proportional to 15,267.08, 21,071.90 and 8,894.71 is: 12,276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,267.08 : 21,071.90 = 8,894.71 : x
  2. Step 2: Convert to fraction form
    15,267.08/21,071.90 = 8,894.71/x
  3. Step 3: Cross multiply
    15,267.08x = 21,071.90 × 8,894.71
  4. Step 4: Simplify right side
    15,267.08x = 187,428,438.19
  5. Step 5: Solve for x
    x = 187,428,438.19/15,267.08
  6. Step 6: Final answer
    x = 12,276.64

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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.