Home / 12,689.28-19,041.81-6,116.13

Finding the Fourth Proportional to 12,689.28, 19,041.81 and 6,116.13

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Solution

The fourth proportional to 12,689.28, 19,041.81 and 6,116.13 is: 9,178.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689.28 : 19,041.81 = 6,116.13 : x
  2. Step 2: Convert to fraction form
    12,689.28/19,041.81 = 6,116.13/x
  3. Step 3: Cross multiply
    12,689.28x = 19,041.81 × 6,116.13
  4. Step 4: Simplify right side
    12,689.28x = 116,462,185.40
  5. Step 5: Solve for x
    x = 116,462,185.40/12,689.28
  6. Step 6: Final answer
    x = 9,178.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.