Home / 18,463.95-27,689.45-5,312.79

Finding the Fourth Proportional to 18,463.95, 27,689.45 and 5,312.79

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Solution

The fourth proportional to 18,463.95, 27,689.45 and 5,312.79 is: 7,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,463.95 : 27,689.45 = 5,312.79 : x
  2. Step 2: Convert to fraction form
    18,463.95/27,689.45 = 5,312.79/x
  3. Step 3: Cross multiply
    18,463.95x = 27,689.45 × 5,312.79
  4. Step 4: Simplify right side
    18,463.95x = 147,108,206.50
  5. Step 5: Solve for x
    x = 147,108,206.50/18,463.95
  6. Step 6: Final answer
    x = 7,967.32

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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.