Home / 13,988.28-19,298.52-8,017.74

Finding the Fourth Proportional to 13,988.28, 19,298.52 and 8,017.74

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Solution

The fourth proportional to 13,988.28, 19,298.52 and 8,017.74 is: 11,061.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.28 : 19,298.52 = 8,017.74 : x
  2. Step 2: Convert to fraction form
    13,988.28/19,298.52 = 8,017.74/x
  3. Step 3: Cross multiply
    13,988.28x = 19,298.52 × 8,017.74
  4. Step 4: Simplify right side
    13,988.28x = 154,730,515.74
  5. Step 5: Solve for x
    x = 154,730,515.74/13,988.28
  6. Step 6: Final answer
    x = 11,061.44

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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.