Home / 19,012.80-26,237.19-10,515.40

Finding the Fourth Proportional to 19,012.80, 26,237.19 and 10,515.40

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Solution

The fourth proportional to 19,012.80, 26,237.19 and 10,515.40 is: 14,510.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.80 : 26,237.19 = 10,515.40 : x
  2. Step 2: Convert to fraction form
    19,012.80/26,237.19 = 10,515.40/x
  3. Step 3: Cross multiply
    19,012.80x = 26,237.19 × 10,515.40
  4. Step 4: Simplify right side
    19,012.80x = 275,894,547.73
  5. Step 5: Solve for x
    x = 275,894,547.73/19,012.80
  6. Step 6: Final answer
    x = 14,510.99

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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.