Home / 15,413.95-21,271.89-9,746.65

Finding the Fourth Proportional to 15,413.95, 21,271.89 and 9,746.65

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Solution

The fourth proportional to 15,413.95, 21,271.89 and 9,746.65 is: 13,450.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.95 : 21,271.89 = 9,746.65 : x
  2. Step 2: Convert to fraction form
    15,413.95/21,271.89 = 9,746.65/x
  3. Step 3: Cross multiply
    15,413.95x = 21,271.89 × 9,746.65
  4. Step 4: Simplify right side
    15,413.95x = 207,329,666.67
  5. Step 5: Solve for x
    x = 207,329,666.67/15,413.95
  6. Step 6: Final answer
    x = 13,450.78

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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.