Home / 13,969.13-19,281.92-8,946.88

Finding the Fourth Proportional to 13,969.13, 19,281.92 and 8,946.88

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Solution

The fourth proportional to 13,969.13, 19,281.92 and 8,946.88 is: 12,349.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.13 : 19,281.92 = 8,946.88 : x
  2. Step 2: Convert to fraction form
    13,969.13/19,281.92 = 8,946.88/x
  3. Step 3: Cross multiply
    13,969.13x = 19,281.92 × 8,946.88
  4. Step 4: Simplify right side
    13,969.13x = 172,512,931.47
  5. Step 5: Solve for x
    x = 172,512,931.47/13,969.13
  6. Step 6: Final answer
    x = 12,349.59

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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.