Home / 12,830.24-19,227.40-9,707.70

Finding the Fourth Proportional to 12,830.24, 19,227.40 and 9,707.70

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Solution

The fourth proportional to 12,830.24, 19,227.40 and 9,707.70 is: 14,547.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,830.24 : 19,227.40 = 9,707.70 : x
  2. Step 2: Convert to fraction form
    12,830.24/19,227.40 = 9,707.70/x
  3. Step 3: Cross multiply
    12,830.24x = 19,227.40 × 9,707.70
  4. Step 4: Simplify right side
    12,830.24x = 186,653,830.98
  5. Step 5: Solve for x
    x = 186,653,830.98/12,830.24
  6. Step 6: Final answer
    x = 14,547.96

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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.