Home / 15,270.65-22,920.75-7,378.71

Finding the Fourth Proportional to 15,270.65, 22,920.75 and 7,378.71

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Solution

The fourth proportional to 15,270.65, 22,920.75 and 7,378.71 is: 11,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270.65 : 22,920.75 = 7,378.71 : x
  2. Step 2: Convert to fraction form
    15,270.65/22,920.75 = 7,378.71/x
  3. Step 3: Cross multiply
    15,270.65x = 22,920.75 × 7,378.71
  4. Step 4: Simplify right side
    15,270.65x = 169,125,567.23
  5. Step 5: Solve for x
    x = 169,125,567.23/15,270.65
  6. Step 6: Final answer
    x = 11,075.21

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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.